Equipment for crop protection — Spraying equipment — Part 1: Test methods for sprayer nozzles

ISO 5682-1:2017 specifies test methods to assess the performance of sprayer nozzles with the exception of droplet characteristics. Applicable tests by nozzle type are described in an informative annex as a guide, but this is not required for use of this document.

Matériel de protection des cultures — Équipement de pulvérisation — Partie 1: Méthodes d'essai des buses de pulvérisation

ISO 5682-1:2017 spécifie des méthodes d'essai pour évaluer les performances des buses de pulvérisation, à l'exception des caractéristiques des gouttelettes. Des essais applicables par type de buse sont décrits dans une annexe informative; ils peuvent servir de guide, mais ne constituent pas une exigence dans le cadre de l'utilisation du présent document.

Oprema za zaščito poljščin - Oprema za škropljenje - 1. del: Preskusne metode za preskušanja šob (ISO 5682-1:2017)

Ta dokument določa preskusne metode za oceno učinkovitosti šob škropilnika, razen lastnosti kapljic. Ustrezni preskusi glede na vrsto šobe so opisani v informativnem dodatku kot napotki, ki pa niso zahtevani za uporabo tega dokumenta.

General Information

Status
Published
Publication Date
25-Apr-2017
Current Stage
9093 - International Standard confirmed
Completion Date
23-Sep-2022

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INTERNATIONAL ISO
STANDARD 5682-1
Third edition
2017-05
Equipment for crop protection —
Spraying equipment —
Part 1:
Test methods for sprayer nozzles
Matériel de protection des cultures — Équipement de pulvérisation —
Partie 1: Méthodes d’essai des buses de pulvérisation
Reference number
ISO 5682-1:2017(E)
ISO 2017
---------------------- Page: 1 ----------------------
ISO 5682-1:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 5682-1:2017(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Measuring equipment ..................................................................................................................................................................................... 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Horizontal patternator ..................................................................................................................................................................... 1

4.2.1 General...................................................................................................................................................................................... 1

4.2.2 Groove characteristics ................................................................................................................................................. 1

4.2.3 Upper part of the groove walls ............................................................................................................................ 5

4.2.4 Overall dimensions ........................................................................................................................................................ 6

4.2.5 Traversing systems ........................................................................................................................................................ 6

4.3 Distance ......................................................................................................................................................................................................... 6

4.4 Pressure ........................................................................................................................................................................................................ 6

4.5 Time .................................................................................................................................................................................................................. 6

4.6 Flow rate ....................................................................................................................................................................................................... 7

4.7 Angle ................................................................................................................................................................................................................ 7

4.8 Temperature and humidity .......................................................................................................................................................... 7

4.9 Volume and mass .................................................................................................................................................................................. 7

4.10 Air pressure ............................................................................................................................................................................................... 7

4.11 Standard laboratory horizontal spray boom ................................................................................................................. 7

5 General test conditions .................................................................................................................................................................................. 8

5.1 General ........................................................................................................................................................................................................... 8

5.2 Test liquids.................................................................................................................................................................................................. 8

5.2.1 Water .......................................................................................................................................................................................... 8

5.2.2 Abrasive liquid ................................................................................................................................................................... 9

5.3 Temperature and relative humidity ...................................................................................................................................... 9

5.4 Nozzle flow rate setting ................................................................................................................................................................... 9

6 Determination of sprayer nozzle characteristics ............................................................................................................... 9

6.1 Nozzle sampling ..................................................................................................................................................................................... 9

6.1.1 General...................................................................................................................................................................................... 9

6.1.2 Nozzle samples .................................................................................................................................................................. 9

6.2 Nozzle flow rate uniformity ......................................................................................................................................................... 9

6.2.1 General...................................................................................................................................................................................... 9

6.2.2 Test liquid .................. .................................................... ......................................................................................................10

6.2.3 Nozzle flow rate setting ..........................................................................................................................................10

6.2.4 Measurements .................................................................................................................................................................10

6.2.5 Results ....................................................................................................................................................................................10

6.3 Nozzle flow rate as a function of pressure adjustments ..................................................................................10

6.3.1 General...................................................................................................................................................................................10

6.3.2 Test liquid .................. .................................................... ......................................................................................................10

6.3.3 Nozzle flow rate settings ........................................................................................................................................10

6.3.4 Measurements .................................................................................................................................................................11

6.3.5 Results ....................................................................................................................................................................................11

6.4 Spray distribution on a horizontal patternator .......................................................................................................11

6.4.1 General...................................................................................................................................................................................11

6.4.2 General test conditions ............................................................................................................................................13

6.4.3 Test liquid .................. .................................................... ......................................................................................................13

6.4.4 Nozzle flow rate settings ........................................................................................................................................13

6.4.5 Nozzle orientation .......................................................................................................................................................14

6.4.6 Nozzle height ....................................................................................................................................................................15

6.4.7 Measurements .................................................................................................................................................................15

© ISO 2017 – All rights reserved iii
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ISO 5682-1:2017(E)

6.4.8 Results ....................................................................................................................................................................................16

6.5 Nozzle flow rate and distribution changes due to abrasion (accelerated wear test) ..............16

6.5.1 General...................................................................................................................................................................................16

6.5.2 Test liquid .................. .................................................... ......................................................................................................16

6.5.3 Nozzle flow rate setting ..........................................................................................................................................16

6.5.4 Abrasion test duration .............................................................................................................................................16

6.5.5 Measurements .................................................................................................................................................................17

6.5.6 Results ....................................................................................................................................................................................17

6.6 Spray angle ..............................................................................................................................................................................................17

7 Test report ................................................................................................................................................................................................................18

Annex A (informative) Applicable tests by nozzle type ..................................................................................................................19

Annex B (informative) Horizontal patternator .......................................................................................................................................21

Annex C (informative) Nozzle spray angle, spacing and height relationships for horizontal

patternator testing ..........................................................................................................................................................................................25

Annex D (normative) Specification of the aluminium oxide.....................................................................................................26

Annex E (informative) Model test report for nozzles in accordance with ISO 5682-1 ...................................27

Annex F (informative) Reporting results for cone nozzles .........................................................................................................33

Annex G (informative) Standard spray boom for testing multiple nozzles ...............................................................34

Bibliography .............................................................................................................................................................................................................................35

iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 5682-1:2017(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: w w w . i s o .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture

and forestry, Subcommittee SC 6, Equipment for crop protection.

This third edition cancels and replaces the second edition (ISO 5682-1:1996), which has been technically

revised as follows:
— clarity for the construction of the patternator;
— addition of a multiple nozzle setup to nozzle test methods;
— broadening of the scope of nozzle types covered;
— removal of drop size measurement using a Petri dish;
— clarification on the methods;
— clarification on sampling;
— update of instrumentation;
— several new informative annexes.
A list of all the parts in the ISO 5682 series can be found on the ISO website.
© ISO 2017 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 5682-1:2017(E)
Equipment for crop protection — Spraying equipment —
Part 1:
Test methods for sprayer nozzles
1 Scope

This document specifies test methods to assess the performance of sprayer nozzles with the exception

of droplet characteristics. Applicable tests by nozzle type are described in an informative annex as a

guide, but this is not required for use of this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 5681, Equipment for crop protection — Vocabulary

ISO 8486-2:2007, Bonded abrasives — Determination and designation of grain size distribution — Part 2:

Microgrits F230 to F2000
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 5681 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Measuring equipment
4.1 General

The working range of the measuring equipment shall be within the intended range of the measurements

to be taken. The equipment used shall be recorded in the test report.
4.2 Horizontal patternator
4.2.1 General

The details for a horizontal patternator are described in 4.2. Annex B includes informative construction

details, but is not required for equipment construction. For non-laboratory conditions, exceptions shall

be noted on the report.
4.2.2 Groove characteristics

a) The distance between two consecutive groove walls (E in Figure 4) when measuring single nozzles

shall be either 25 mm or 50 mm.
© ISO 2017 – All rights reserved 1
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ISO 5682-1:2017(E)

b) If the horizontal patternator is intended for the measurement of distribution evenness across

multiple nozzles or complete spray booms, the distance between two consecutive groove walls (E

in Figure 4) can be a distance of 25 mm, 50 mm, or 100 mm.

c) The deviation of the leading edges of the groove walls from horizontal shall not exceed a slope

of ± 1 % (10 mm/m) across the width (A in Figure 1).

d) The variation in height of the grooves shall not exceed 2 mm as measured with a straight edge of at

least 1 m length (B in Figure 2).

e) The inclination of the leading edge of the grooves shall not exceed a slope of 10 % from horizontal

(C in Figure 3).
f) Grooves shall allow liquid to properly drain into the collection areas.

g) Groove depth (F in Figure 4) and groove width (E in Figure 4) shall be as specified in Table 1; this is

to minimize the potential redistribution due to splashing. The depth and slope of the grooves may

need to be adjusted in case of higher flows.
Table 1 — Groove depth
Groove width (E) 25 mm 50 mm/100 mm
Groove depth (F) ≥ 50 mm ≥ 75 mm

h) The straightness of each groove wall at the leading edge (J in Figure 5) shall be within ± 1,5 mm/m

of the intended location (H in Figure 5) for horizontal patternators where the groove width (E in

Figure 4) is 25 mm or 50 mm; the straightness of each groove wall at the leading edge shall be

within ± 2,0 mm/m where the groove width is 100 mm.

i) The deviation of the distance between the leading edges of two consecutive groove walls (E in

Figure 4) shall be within ± 1,5 mm for 25 mm and 50 mm grooves and ± 2 mm for 100 mm grooves.

Key
A slope deviation from horizontal
Figure 1 — Transverse angle of leading edges of grooves
2 © ISO 2017 – All rights reserved
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ISO 5682-1:2017(E)
Key
B deviation of groove leading edges height
Figure 2 — Variation of groove leading edges heights
Key
C inclination of the leading edge of the grooves from horizontal
Figure 3 — Inclination of leading edges
© ISO 2017 – All rights reserved 3
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ISO 5682-1:2017(E)
Key
D lower groove wall thickness
E distance between two consecutive groove walls (groove width)
F groove depth
G upper groove wall thickness
Figure 4 — Groove section
4 © ISO 2017 – All rights reserved
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ISO 5682-1:2017(E)
Key
H intended location of wall leading edge
J full length of wall
Figure 5 — Straightness of groove walls
4.2.3 Upper part of the groove walls

a) The upper part of the groove walls (G in Figure 4) shall be less than 1,6 mm in width.

b) The lower part of the groove walls (D in Figure 4) may vary in thickness.
© ISO 2017 – All rights reserved 5
---------------------- Page: 10 ----------------------
ISO 5682-1:2017(E)
4.2.4 Overall dimensions

The overall dimensions of the bench can vary depending on the need (i.e. number of nozzles, boom size).

The length and width of the bench shall be sufficient to capture the intended spray area.

In cases where a bench cannot be constructed to capture the entire spray pattern of all of the nozzles

intended to be measured, a means such as traversing step by step in the direction of the boom is allowed.

The tolerance of the overall width of the bench shall be as specified in Table 2.

Table 2 — Tolerance of the width
Table width (W) W ≤ 1 m 1 < W ≤ 3 m 3 < W ≤ 5 m 5 < W ≤ 10 m 10 < W
Tolerance as percentage of ±1 % ±0,75 % ±0,6 % ±0,4 % ±0,3 %
nominal width
4.2.5 Traversing systems

If the transverse distribution is measured by means of successive transverse measurements (e.g. a

scanner using a patternator cart on rails), the tolerance of the movement from one position to the next

shall be held within ± 10 mm per meter.
4.3 Distance

Distance measurement equipment up to 1 m in length shall have a maximum error of ± 1 mm. For

measurement equipment that measures greater than 1 m, the maximum error shall be 0,1 % of the

measured value.
4.4 Pressure

Minimum requirements on liquid pressure measurements are given in Table 3. The pressure indicator

may be either analogue or digital. Analogue pressure indicators with a needle readout shall have a

minimum diameter of 100 mm and shall be damped.
Table 3 — Characteristics of pressure indicators used for testing
Pressure to Scale unit max. Accuracy Class required Full scale value
measure (∆P)
bar bar bar (% accuracy of full bar
scale value)
1,6 6
0 < ∆P ≤ 6 0,1 ±0,1 1,0 10
0,6 16
1,6 16
6 < ∆P ≤ 16 0,2 ±0,25
1,0 25
2,5 40
∆P > 16 1,0 ±1,0 1,6 60
1,0 100
NOTE 1 bar equals 100 kPa for conversions of Table 3.
Table derived from EN 837-1
4.5 Time

Time measurement equipment shall have a maximum error of 0,5 % of the duration of the measurement.

6 © ISO 2017 – All rights reserved
---------------------- Page: 11 ----------------------
ISO 5682-1:2017(E)
4.6 Flow rate

Flow rate measurement equipment shall have a maximum error of ± 1,5 % of the full range of the device.

Alternatively, use equipment specified in 4.5 and 4.9 to determine the flow rate.

4.7 Angle

Angle measurement through a protractor, angle meter, or digital instrument shall have a maximum

error of ± 0,5°.
4.8 Temperature and humidity

Temperature measurement equipment shall have a maximum error of ± 1 °C. Relative humidity

measurement equipment shall have a maximum error of ± 5 percentage units.
4.9 Volume and mass

Volume and mass measurement equipment shall have a maximum error of ± 1 % of the nominal value.

4.10 Air pressure

For systems that use pressurized air as part of the atomization process, the pressure indicator shall

have a maximum error of ± 5 % of the measured value.
4.11 Standard laboratory horizontal spray boom

The standard horizontal spray boom setup for a horizontal patternator in the laboratory is described

below. Annex G also includes informative details, but is not required for the setup.

The lateral position of the nozzles shall be over the top of the groove wall within ± 5 mm.

A pressure indicator according to 4.4 shall be arranged at a suitable position in the liquid supply system.

The nozzle flow rate shall not vary more than ± 1,0 % at each nozzle position on the boom.

If an anti-drip device is present, the pressure shall be measured at a point downstream of the anti-

drip device. The measurement shall be performed without the nozzle filter unless the nozzle filter is

considered to be integral to the nozzle.

Figure 6 shows an example of a pressure indicator used immediately before the nozzle tip to avoid

pressure drop from anti-drip devices or passageways in the nozzle holder. The test instrument shall

not create a restriction between the nozzle holder and nozzle tip that would alter the flow or pressure.

© ISO 2017 – All rights reserved 7
---------------------- Page: 12 ----------------------
ISO 5682-1:2017(E)
Key
1 nozzle holder
2 pressure indicator (test equipment)
3 nozzle tip
4 adapter tee (test equipment)
Figure 6 — Example of nozzle tip pressure measurement
5 General test conditions
5.1 General

The operational data and test parameters shall be stated in the test report. Annex E provides an

example of a report, but is not required for reporting.
5.2 Test liquids
5.2.1 Water

Water shall be clean and free from solids in suspension with the exception of what might be considered

normal for tap water (e.g. lime causing hard water). If an adjuvant or other plant protection products

are added, the product identity and properties shall be documented in the test report.

8 © ISO 2017 – All rights reserved
---------------------- Page: 13 ----------------------
ISO 5682-1:2017(E)
5.2.2 Abrasive liquid

The liquid mixture shall be water, as stated in 5.2.1, with 20 g/l of micro grains of aluminium oxide

added. The aluminium oxide shall meet requirements according to Annex D. The abrasive liquid shall

be renewed after a time duration (t) corresponding to 50 passages according to the following formula:

50×V
t =
where
t is the time expressed in hours (h);
V is the volume of mixture expressed in litres (l);
q is the flow rate expressed in litres per hour (l/h).
5.3 Temperature and relative humidity

The temperature of the test liquid and the air temperature of the test premises shall be between 5 °C

and 35 °C during the test. The relative humidity of the test premises shall be not less than 30 %. The

temperature and the relative humidity shall be stated in the test report.
5.4 Nozzle flow rate setting

During the test, the nozzle pressure shall not vary more than ± 2,5 % from the intended value. In the

case of a nozzle pressure setting less than 200 kPa (2 bar), ± 5 % variation from the intended value is

allowed. If other parameters are used to control the nozzle flow rate, they shall not vary the flow rate

more than ± 1,5 % of the intended flow rate as stated by the nozzle manufacturer. The nozzle flow rate

setting (e.g. pressure) shall be stated in the test report.
6 Determination of sprayer nozzle characteristics
6.1 Nozzle sampling
6.1.1 General

The sampling conditions shall be stated in the test report noting the size of the lot, the place of sampling

and so on. In addition, the complete designation of the nozzles, including the discs and tips for the cone

spray nozzles, shall be stated in the test report.
6.1.2 Nozzle samples

The sample shall be at least 20 nozzles of the same type taken out of a lot of 200 nozzles. Identify and

mark each nozzle prior to starting the test. If designed to be used as an individual nozzle (e.g. for band

spraying), then the sample size and lot can be less. The sample size and lot size shall be stated in the

test report.
6.2 Nozzle flow rate uniformity
6.2.1 General

The measurement of the flow rate of each nozzle shall be carried out on a test bench using the nozzles

from the sample according to 6.1.2.
© ISO 2017 – All rights reserved 9
---------------------- Page: 14 ----------------------
ISO 5682-1:2017(E)
The test bench consists of:

— a pump by which water with a certain pressure can be pumped through the nozzle;

— a pressure regulator;

— a pressure indicator (as given in 4.4) in which the actual pressure can be monitored;

— a flow meter or liquid collection device (as given in 4.6) in which the actual flow rate can be measured.

The liquid collection system, adapters and so on shall not have an influence on the flow rate.

6.2.2 Test liquid
...

SLOVENSKI STANDARD
SIST ISO 5682-1:2018
01-februar-2018
1DGRPHãþD
SIST ISO 5682-1:2015
2SUHPD]D]DãþLWRSROMãþLQ2SUHPD]DãNURSOMHQMHGHO3UHVNXVQHPHWRGH]D
SUHVNXãDQMDãRE ,62

Equipment for crop protection - Spraying equipment - Part 1: Test methods for sprayer

nozzles (ISO 5682-1:2017)

Matériel de protection des cultures - Équipement de pulvérisation - Partie 1: Méthodes

d'essai des buses de pulvérisation (ISO 5682-1:2017)
Ta slovenski standard je istoveten z: ISO 5682-1:2017
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
SIST ISO 5682-1:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 5682-1:2018
---------------------- Page: 2 ----------------------
SIST ISO 5682-1:2018
INTERNATIONAL ISO
STANDARD 5682-1
Third edition
2017-05
Equipment for crop protection —
Spraying equipment —
Part 1:
Test methods for sprayer nozzles
Matériel de protection des cultures — Équipement de pulvérisation —
Partie 1: Méthodes d’essai des buses de pulvérisation
Reference number
ISO 5682-1:2017(E)
ISO 2017
---------------------- Page: 3 ----------------------
SIST ISO 5682-1:2018
ISO 5682-1:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 5682-1:2018
ISO 5682-1:2017(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Measuring equipment ..................................................................................................................................................................................... 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Horizontal patternator ..................................................................................................................................................................... 1

4.2.1 General...................................................................................................................................................................................... 1

4.2.2 Groove characteristics ................................................................................................................................................. 1

4.2.3 Upper part of the groove walls ............................................................................................................................ 5

4.2.4 Overall dimensions ........................................................................................................................................................ 6

4.2.5 Traversing systems ........................................................................................................................................................ 6

4.3 Distance ......................................................................................................................................................................................................... 6

4.4 Pressure ........................................................................................................................................................................................................ 6

4.5 Time .................................................................................................................................................................................................................. 6

4.6 Flow rate ....................................................................................................................................................................................................... 7

4.7 Angle ................................................................................................................................................................................................................ 7

4.8 Temperature and humidity .......................................................................................................................................................... 7

4.9 Volume and mass .................................................................................................................................................................................. 7

4.10 Air pressure ............................................................................................................................................................................................... 7

4.11 Standard laboratory horizontal spray boom ................................................................................................................. 7

5 General test conditions .................................................................................................................................................................................. 8

5.1 General ........................................................................................................................................................................................................... 8

5.2 Test liquids.................................................................................................................................................................................................. 8

5.2.1 Water .......................................................................................................................................................................................... 8

5.2.2 Abrasive liquid ................................................................................................................................................................... 9

5.3 Temperature and relative humidity ...................................................................................................................................... 9

5.4 Nozzle flow rate setting ................................................................................................................................................................... 9

6 Determination of sprayer nozzle characteristics ............................................................................................................... 9

6.1 Nozzle sampling ..................................................................................................................................................................................... 9

6.1.1 General...................................................................................................................................................................................... 9

6.1.2 Nozzle samples .................................................................................................................................................................. 9

6.2 Nozzle flow rate uniformity ......................................................................................................................................................... 9

6.2.1 General...................................................................................................................................................................................... 9

6.2.2 Test liquid .................. .................................................... ......................................................................................................10

6.2.3 Nozzle flow rate setting ..........................................................................................................................................10

6.2.4 Measurements .................................................................................................................................................................10

6.2.5 Results ....................................................................................................................................................................................10

6.3 Nozzle flow rate as a function of pressure adjustments ..................................................................................10

6.3.1 General...................................................................................................................................................................................10

6.3.2 Test liquid .................. .................................................... ......................................................................................................10

6.3.3 Nozzle flow rate settings ........................................................................................................................................10

6.3.4 Measurements .................................................................................................................................................................11

6.3.5 Results ....................................................................................................................................................................................11

6.4 Spray distribution on a horizontal patternator .......................................................................................................11

6.4.1 General...................................................................................................................................................................................11

6.4.2 General test conditions ............................................................................................................................................13

6.4.3 Test liquid .................. .................................................... ......................................................................................................13

6.4.4 Nozzle flow rate settings ........................................................................................................................................13

6.4.5 Nozzle orientation .......................................................................................................................................................14

6.4.6 Nozzle height ....................................................................................................................................................................15

6.4.7 Measurements .................................................................................................................................................................15

© ISO 2017 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 5682-1:2018
ISO 5682-1:2017(E)

6.4.8 Results ....................................................................................................................................................................................16

6.5 Nozzle flow rate and distribution changes due to abrasion (accelerated wear test) ..............16

6.5.1 General...................................................................................................................................................................................16

6.5.2 Test liquid .................. .................................................... ......................................................................................................16

6.5.3 Nozzle flow rate setting ..........................................................................................................................................16

6.5.4 Abrasion test duration .............................................................................................................................................16

6.5.5 Measurements .................................................................................................................................................................17

6.5.6 Results ....................................................................................................................................................................................17

6.6 Spray angle ..............................................................................................................................................................................................17

7 Test report ................................................................................................................................................................................................................18

Annex A (informative) Applicable tests by nozzle type ..................................................................................................................19

Annex B (informative) Horizontal patternator .......................................................................................................................................21

Annex C (informative) Nozzle spray angle, spacing and height relationships for horizontal

patternator testing ..........................................................................................................................................................................................25

Annex D (normative) Specification of the aluminium oxide.....................................................................................................26

Annex E (informative) Model test report for nozzles in accordance with ISO 5682-1 ...................................27

Annex F (informative) Reporting results for cone nozzles .........................................................................................................33

Annex G (informative) Standard spray boom for testing multiple nozzles ...............................................................34

Bibliography .............................................................................................................................................................................................................................35

iv © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 5682-1:2018
ISO 5682-1:2017(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: w w w . i s o .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture

and forestry, Subcommittee SC 6, Equipment for crop protection.

This third edition cancels and replaces the second edition (ISO 5682-1:1996), which has been technically

revised as follows:
— clarity for the construction of the patternator;
— addition of a multiple nozzle setup to nozzle test methods;
— broadening of the scope of nozzle types covered;
— removal of drop size measurement using a Petri dish;
— clarification on the methods;
— clarification on sampling;
— update of instrumentation;
— several new informative annexes.
A list of all the parts in the ISO 5682 series can be found on the ISO website.
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SIST ISO 5682-1:2018
INTERNATIONAL STANDARD ISO 5682-1:2017(E)
Equipment for crop protection — Spraying equipment —
Part 1:
Test methods for sprayer nozzles
1 Scope

This document specifies test methods to assess the performance of sprayer nozzles with the exception

of droplet characteristics. Applicable tests by nozzle type are described in an informative annex as a

guide, but this is not required for use of this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 5681, Equipment for crop protection — Vocabulary

ISO 8486-2:2007, Bonded abrasives — Determination and designation of grain size distribution — Part 2:

Microgrits F230 to F2000
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 5681 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Measuring equipment
4.1 General

The working range of the measuring equipment shall be within the intended range of the measurements

to be taken. The equipment used shall be recorded in the test report.
4.2 Horizontal patternator
4.2.1 General

The details for a horizontal patternator are described in 4.2. Annex B includes informative construction

details, but is not required for equipment construction. For non-laboratory conditions, exceptions shall

be noted on the report.
4.2.2 Groove characteristics

a) The distance between two consecutive groove walls (E in Figure 4) when measuring single nozzles

shall be either 25 mm or 50 mm.
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ISO 5682-1:2017(E)

b) If the horizontal patternator is intended for the measurement of distribution evenness across

multiple nozzles or complete spray booms, the distance between two consecutive groove walls (E

in Figure 4) can be a distance of 25 mm, 50 mm, or 100 mm.

c) The deviation of the leading edges of the groove walls from horizontal shall not exceed a slope

of ± 1 % (10 mm/m) across the width (A in Figure 1).

d) The variation in height of the grooves shall not exceed 2 mm as measured with a straight edge of at

least 1 m length (B in Figure 2).

e) The inclination of the leading edge of the grooves shall not exceed a slope of 10 % from horizontal

(C in Figure 3).
f) Grooves shall allow liquid to properly drain into the collection areas.

g) Groove depth (F in Figure 4) and groove width (E in Figure 4) shall be as specified in Table 1; this is

to minimize the potential redistribution due to splashing. The depth and slope of the grooves may

need to be adjusted in case of higher flows.
Table 1 — Groove depth
Groove width (E) 25 mm 50 mm/100 mm
Groove depth (F) ≥ 50 mm ≥ 75 mm

h) The straightness of each groove wall at the leading edge (J in Figure 5) shall be within ± 1,5 mm/m

of the intended location (H in Figure 5) for horizontal patternators where the groove width (E in

Figure 4) is 25 mm or 50 mm; the straightness of each groove wall at the leading edge shall be

within ± 2,0 mm/m where the groove width is 100 mm.

i) The deviation of the distance between the leading edges of two consecutive groove walls (E in

Figure 4) shall be within ± 1,5 mm for 25 mm and 50 mm grooves and ± 2 mm for 100 mm grooves.

Key
A slope deviation from horizontal
Figure 1 — Transverse angle of leading edges of grooves
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ISO 5682-1:2017(E)
Key
B deviation of groove leading edges height
Figure 2 — Variation of groove leading edges heights
Key
C inclination of the leading edge of the grooves from horizontal
Figure 3 — Inclination of leading edges
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SIST ISO 5682-1:2018
ISO 5682-1:2017(E)
Key
D lower groove wall thickness
E distance between two consecutive groove walls (groove width)
F groove depth
G upper groove wall thickness
Figure 4 — Groove section
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ISO 5682-1:2017(E)
Key
H intended location of wall leading edge
J full length of wall
Figure 5 — Straightness of groove walls
4.2.3 Upper part of the groove walls

a) The upper part of the groove walls (G in Figure 4) shall be less than 1,6 mm in width.

b) The lower part of the groove walls (D in Figure 4) may vary in thickness.
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ISO 5682-1:2017(E)
4.2.4 Overall dimensions

The overall dimensions of the bench can vary depending on the need (i.e. number of nozzles, boom size).

The length and width of the bench shall be sufficient to capture the intended spray area.

In cases where a bench cannot be constructed to capture the entire spray pattern of all of the nozzles

intended to be measured, a means such as traversing step by step in the direction of the boom is allowed.

The tolerance of the overall width of the bench shall be as specified in Table 2.

Table 2 — Tolerance of the width
Table width (W) W ≤ 1 m 1 < W ≤ 3 m 3 < W ≤ 5 m 5 < W ≤ 10 m 10 < W
Tolerance as percentage of ±1 % ±0,75 % ±0,6 % ±0,4 % ±0,3 %
nominal width
4.2.5 Traversing systems

If the transverse distribution is measured by means of successive transverse measurements (e.g. a

scanner using a patternator cart on rails), the tolerance of the movement from one position to the next

shall be held within ± 10 mm per meter.
4.3 Distance

Distance measurement equipment up to 1 m in length shall have a maximum error of ± 1 mm. For

measurement equipment that measures greater than 1 m, the maximum error shall be 0,1 % of the

measured value.
4.4 Pressure

Minimum requirements on liquid pressure measurements are given in Table 3. The pressure indicator

may be either analogue or digital. Analogue pressure indicators with a needle readout shall have a

minimum diameter of 100 mm and shall be damped.
Table 3 — Characteristics of pressure indicators used for testing
Pressure to Scale unit max. Accuracy Class required Full scale value
measure (∆P)
bar bar bar (% accuracy of full bar
scale value)
1,6 6
0 < ∆P ≤ 6 0,1 ±0,1 1,0 10
0,6 16
1,6 16
6 < ∆P ≤ 16 0,2 ±0,25
1,0 25
2,5 40
∆P > 16 1,0 ±1,0 1,6 60
1,0 100
NOTE 1 bar equals 100 kPa for conversions of Table 3.
Table derived from EN 837-1
4.5 Time

Time measurement equipment shall have a maximum error of 0,5 % of the duration of the measurement.

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4.6 Flow rate

Flow rate measurement equipment shall have a maximum error of ± 1,5 % of the full range of the device.

Alternatively, use equipment specified in 4.5 and 4.9 to determine the flow rate.

4.7 Angle

Angle measurement through a protractor, angle meter, or digital instrument shall have a maximum

error of ± 0,5°.
4.8 Temperature and humidity

Temperature measurement equipment shall have a maximum error of ± 1 °C. Relative humidity

measurement equipment shall have a maximum error of ± 5 percentage units.
4.9 Volume and mass

Volume and mass measurement equipment shall have a maximum error of ± 1 % of the nominal value.

4.10 Air pressure

For systems that use pressurized air as part of the atomization process, the pressure indicator shall

have a maximum error of ± 5 % of the measured value.
4.11 Standard laboratory horizontal spray boom

The standard horizontal spray boom setup for a horizontal patternator in the laboratory is described

below. Annex G also includes informative details, but is not required for the setup.

The lateral position of the nozzles shall be over the top of the groove wall within ± 5 mm.

A pressure indicator according to 4.4 shall be arranged at a suitable position in the liquid supply system.

The nozzle flow rate shall not vary more than ± 1,0 % at each nozzle position on the boom.

If an anti-drip device is present, the pressure shall be measured at a point downstream of the anti-

drip device. The measurement shall be performed without the nozzle filter unless the nozzle filter is

considered to be integral to the nozzle.

Figure 6 shows an example of a pressure indicator used immediately before the nozzle tip to avoid

pressure drop from anti-drip devices or passageways in the nozzle holder. The test instrument shall

not create a restriction between the nozzle holder and nozzle tip that would alter the flow or pressure.

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Key
1 nozzle holder
2 pressure indicator (test equipment)
3 nozzle tip
4 adapter tee (test equipment)
Figure 6 — Example of nozzle tip pressure measurement
5 General test conditions
5.1 General

The operational data and test parameters shall be stated in the test report. Annex E provides an

example of a report, but is not required for reporting.
5.2 Test liquids
5.2.1 Water

Water shall be clean and free from solids in suspension with the exception of what might be considered

normal for tap water (e.g. lime causing hard water). If an adjuvant or other plant protection products

are added, the product identity and properties shall be documented in the test report.

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5.2.2 Abrasive liquid

The liquid mixture shall be water, as stated in 5.2.1, with 20 g/l of micro grains of aluminium oxide

added. The aluminium oxide shall meet requirements according to Annex D. The abrasive liquid shall

be renewed after a time duration (t) corresponding to 50 passages according to the following formula:

50×V
t =
where
t is the time expressed in hours (h);
V is the volume of mixture expressed in litres (l);
q is the flow rate expressed in litres per hour (l/h).
5.3 Temperature and relative humidity

The temperature of the test liquid and the air temperature of the test premises shall be between 5 °C

and 35 °C during the test. The relative humidity of the test premises shall be not less than 30 %. The

temperature and the relative humidity shall be stated in the test report.
5.4 Nozzle flow rate setting

During the test, the nozzle pressure shall not vary more than ± 2,5 % from the intended value. In the

case of a nozzle pressure setting less than 200 kPa (2 bar), ± 5 % variation from the intended value is

allowed. If other parameters are used to control the nozzle flow rate, they shall not vary the flow rate

more than ± 1,5 % of the intended flow rate as stated by the nozzle manufacturer. The nozzle flow rate

setting (e.g. pressure) shall be stated in the test report.
6 Determination of sprayer nozzle characteristics
6.1 Nozzle sampling
6.1.1 General

The sampling conditions shall be stated in the test report noting the size of the lot, the place of sampling

and so on. In
...

NORME ISO
INTERNATIONALE 5682-1
Troisième édition
2017-05
Matériel de protection des cultures —
Équipement de pulvérisation —
Partie 1:
Méthodes d’essai des buses de
pulvérisation
Equipment for crop protection — Spraying equipment —
Part 1: Test methods for sprayer nozzles
Numéro de référence
ISO 5682-1:2017(F)
ISO 2017
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ISO 5682-1:2017(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2017, Publié en Suisse

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni utilisée

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l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
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Tel. +41 22 749 01 11
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copyright@iso.org
www.iso.org
ii © ISO 2017 – Tous droits réservés
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ISO 5682-1:2017(F)
Sommaire Page

Avant-propos ................................................................................................................................................................................................................................v

1 Domaine d’application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 1

4 Équipement de mesurage ............................................................................................................................................................................ 1

4.1 Généralités .................................................................................................................................................................................................. 1

4.2 Banc de répartition horizontal .................................................................................................................................................. 1

4.2.1 Généralités ............................................................................................................................................................................ 1

4.2.2 Caractéristiques des gouttières........................................................................................................................... 2

4.2.3 Partie supérieure des parois de gouttières ............................................................................................... 5

4.2.4 Dimensions hors tout ........................................................................................................................................... ........ 6

4.2.5 Systèmes mobiles (pas à pas) ............................................................................................................................... 6

4.3 Distance ......................................................................................................................................................................................................... 6

4.4 Pression ......................................................................................................................................................................................................... 6

4.5 Temps .............................................................................................................................................................................................................. 7

4.6 Débit ................................................................................................................................................................................................................. 7

4.7 Angle ................................................................................................................................................................................................................ 7

4.8 Température et humidité ............................................................................................................................................................... 7

4.9 Volume et masse .................................................................................................................................................................................... 7

4.10 Pression d’air ............................................................................................................................................................................................ 7

4.11 Rampe horizontale type de pulvérisation pour les mesures de laboratoire ..................................... 7

5 Conditions générales d’essai .................................................................................................................................................................... 8

5.1 Généralités .................................................................................................................................................................................................. 8

5.2 Liquides d’essai ...................................................................................................................................................................................... 8

5.2.1 Eau .................. ......................................................................................................................... ..................................................... 8

5.2.2 Liquide abrasif ................................................................................................................................................................... 9

5.3 Température et humidité relative ........................................................................................................................................... 9

5.4 Paramétrage des grandeurs d’influence du débit des buses ........................................................................... 9

6 Détermination des caractéristiques des buses de pulvérisation .......................................................................9

6.1 Échantillonnage des buses ............................................................................................................................................................ 9

6.1.1 Généralités ............................................................................................................................................................................ 9

6.1.2 Échantillons de buses .................................................................................................................................................. 9

6.2 Uniformité du débit des buses ................................................................................................................................................... 9

6.2.1 Généralités ............................................................................................................................................................................ 9

6.2.2 Liquide d’essai ................................................................................................................................................................10

6.2.3 Paramétrage des grandeurs d’influence du débit des buses...................................................10

6.2.4 Mesurages ...........................................................................................................................................................................10

6.2.5 Résultats ...............................................................................................................................................................................10

6.3 Débit des buses pour différents réglages de pression .......................................................................................10

6.3.1 Généralités .........................................................................................................................................................................10

6.3.2 Liquide d’essai ................................................................................................................................................................10

6.3.3 Grandeurs d’influence du débit des buses ..............................................................................................11

6.3.4 Mesurages ...........................................................................................................................................................................11

6.3.5 Résultats ...............................................................................................................................................................................11

6.4 Répartition du jet de pulvérisation sur un banc de répartition horizontal .....................................11

6.4.1 Généralités .........................................................................................................................................................................11

6.4.2 Conditions générales d’essai ..............................................................................................................................13

6.4.3 Liquide d’essai ................................................................................................................................................................13

6.4.4 Paramétrage du débit des buses .....................................................................................................................13

6.4.5 Orientation des buses ...............................................................................................................................................14

6.4.6 Hauteur des buses .......................................................................................................................................................15

6.4.7 Mesurages ...........................................................................................................................................................................15

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ISO 5682-1:2017(F)

6.4.8 Résultats ...............................................................................................................................................................................16

6.5 Influence de l’abrasion sur le débit des buses et la répartition (essai d’usure accélérée) .16

6.5.1 Généralités .........................................................................................................................................................................16

6.5.2 Liquide d’essai ................................................................................................................................................................16

6.5.3 Grandeurs d’influence du débit des buses ..............................................................................................17

6.5.4 Durée de l’essai d’abrasion ..................................................................................................................................17

6.5.5 Mesurages ...........................................................................................................................................................................17

6.5.6 Résultats ...............................................................................................................................................................................17

6.6 Angle de pulvérisation ...................................................................................................................................................................17

7 Rapport d’essai ....................................................................................................................................................................................................18

Annexe A (informative) Essais applicables par type de buse ...................................................................................................19

Annexe B (informative) Banc de répartition horizontal ...............................................................................................................21

Annexe C (informative) Rapports entre l’angle de pulvérisation, l’espacement et la hauteur

des buses pour les essais sur banc de répartition horizontal ............................................................................25

Annexe D (normative) Spécification de l’oxyde d’aluminium .................................................................................................26

Annexe E (informative) Modèle de rapport d’essai de buses selon l’ISO 5682-1 ................................................27

Annexe F (informative) Présentation des résultats pour les buses à turbulence ...............................................33

Annexe G (informative) Rampe de pulvérisation type pour soumettre à essai plusieurs

buses pour l’essai avec un montage multibuses ...............................................................................................................34

Bibliographie ...........................................................................................................................................................................................................................35

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ISO 5682-1:2017(F)
Avant-propos

L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes

nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est

en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude

a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,

gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.

L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui

concerne la normalisation électrotechnique.

Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont

décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents

critères d’approbation requis pour les différents types de documents ISO. Le présent document a été

rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www

.iso .org/ directives).

L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de

droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable

de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant

les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de

l’élaboration du document sont indiqués dans l’Introduction et/ou dans la liste des déclarations de

brevets reçues par l’ISO (voir www .iso .org/ brevets).

Les appellations commerciales éventuellement mentionnées dans le présent document sont données

pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un

engagement.

Pour une explication de la nature volontaire des normes, la signification des termes et expressions

spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion

de l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles

techniques au commerce (OTC), voir le lien suivant: w w w . i s o .org/ iso/ fr/ avant -propos .html

Le présent document a été élaboré par le comité technique ISO/TC 23, Tracteurs et matériels agricoles et

forestiers, sous-comité SC 6, Matériel de protection des cultures.

Cette troisième édition annule et remplace la deuxième édition (ISO 5682-1:1996), qui a fait l’objet d’une

révision technique comme suit:
— une clarification concernant la construction du banc de répartition;
— l’ajout d’un montage multibuses aux méthodes d’essai des buses;
— l’élargissement du domaine d’application des types de buses couverts;

— la suppression du mesurage de la taille des gouttes au moyen d’une boîte de Petri;

— une clarification concernant les méthodes;
— une clarification concernant l’échantillonnage;
— une mise à jour des instruments;
— plusieurs nouvelles annexes informatives.

Une liste de toutes les parties de la série ISO 5682 peut être consultée sur le site de l’ISO.

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NORME INTERNATIONALE ISO 5682-1:2017(F)
Matériel de protection des cultures — Équipement de
pulvérisation —
Partie 1:
Méthodes d’essai des buses de pulvérisation
1 Domaine d’application

Le présent document spécifie des méthodes d’essai pour évaluer les performances des buses de

pulvérisation, à l’exception des caractéristiques des gouttelettes. Des essais applicables par type de

buse sont décrits dans une annexe informative; ils peuvent servir de guide, mais ne constituent pas une

exigence dans le cadre de l’utilisation du présent document.
2 Références normatives

Les documents suivants cités dans le texte constituent, pour tout ou partie de leur contenu, des

exigences du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les

références non datées, la dernière édition du document de référence s’applique (y compris les éventuels

amendements).
ISO 5681, Matériel de traitement phytopharmaceutique — Vocabulaire

ISO 8486-2:2007, Abrasifs agglomérés — Détermination et désignation de la distribution

granulométrique — Partie 2: Micrograins F230 à F2000
3 Termes et définitions

Pour les besoins du présent document, les termes et définitions donnés dans l’ISO 5681 s’appliquent.

L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en

normalisation, consultables aux adresses suivantes:

— ISO Online browsing platform: disponible à l’adresse http:// www .iso .org/ obp

— IEC Electropedia: disponible à l’adresse http:// www .electropedia .org/
4 Équipement de mesurage
4.1 Généralités

La plage d’utilisation de l’équipement de mesurage doit être comprise dans la plage des mesurages que

l’on prévoit d’effectuer. L’équipement utilisé doit être consigné dans le rapport d’essai.

4.2 Banc de répartition horizontal
4.2.1 Généralités

Une description détaillée d’un banc de répartition horizontal est donnée en 4.2. L’Annexe B contient

des détails de construction informatifs, mais ne constitue pas une exigence concernant la construction

de l’équipement. Pour les conditions hors laboratoire, les exceptions doivent être consignées dans le

rapport.
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ISO 5682-1:2017(F)
4.2.2 Caractéristiques des gouttières

a) La distance entre deux parois de gouttières consécutives (E à la Figure 4) lorsque le mesurage

concerne une buse seule doit être de 25 mm ou de 50 mm.

b) Si le banc de répartition horizontal est destiné au mesurage de l’homogénéité de la répartition de jets

produits par plusieurs buses ou par des rampes de pulvérisation complètes, la distance entre deux

parois de gouttières consécutives (E à la Figure 4) peut être de 25 mm, de 50 mm ou de 100 mm.

c) L’écart entre le plan des arêtes des parois de gouttières et l’horizontale ne doit pas dépasser ± 1 %

(10 mm/m) de pente dans le sens de la largeur (A à la Figure 1).

d) La variation de hauteur entre les arêtes des gouttières, mesurée sur au moins 1 m de longueur (B à

la Figure 2), ne doit pas excéder 2 mm.

e) La pente des arêtes des gouttières ne doit pas dépasser 10 % par rapport à l’horizontale (C à la

Figure 3).

f) Les gouttières doivent permettre au liquide de s’écouler correctement vers les zones de collecte.

g) Les gouttières doivent avoir la profondeur (F à la Figure 4) et la largeur (E à la Figure 4) spécifiées

dans le Tableau 1, ceci afin de réduire au minimum le risque de mauvaise distribution dû aux

projections. Il peut s’avérer nécessaire d’ajuster la profondeur et l’inclinaison des gouttières lorsque

les débits sont plus élevés.
Tableau 1 — Profondeur des gouttières
Largeur des gouttières (E) 25 mm 50 mm/100 mm
Profondeur des gout- ≥ 50 mm ≥ 75 mm
tières (F)

h) L’écart de rectitude de chaque paroi de gouttière, le long de l’arête (J à la Figure 5), ne doit pas

excéder ± 1,5 mm/m par rapport à la position prévue (H à la Figure 5) pour les bancs de répartition

horizontaux dont les gouttières mesurent 25 mm ou 50 mm de largeur (E à la Figure 4). L’écart de

rectitude de chaque paroi de gouttière, au niveau de l’arête, ne doit pas excéder ± 2,0 mm/m lorsque

les gouttières mesurent 100 mm de largeur.

i) L’écart de distance entre les arêtes de deux parois de gouttières consécutives (E à la Figure 4) ne

doit pas dépasser ± 1,5 mm pour les gouttières mesurant 25 mm ou 50 mm de largeur et ± 2 mm

pour les gouttières mesurant 100 mm de largeur.
Légende
A écart d’inclinaison par rapport à l’horizontale
Figure 1 — Angle transversal des arêtes des gouttières
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ISO 5682-1:2017(F)
Légende
B écart de hauteur des arêtes des gouttières
Figure 2 — Variation de hauteur des arêtes des gouttières
Légende
C inclinaison des arêtes des gouttières par rapport à l’horizontale
Figure 3 — Inclinaison des arêtes
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ISO 5682-1:2017(F)
Légende
D épaisseur de la partie inférieure des parois de gouttières
E distance entre deux parois de gouttières consécutives (largeur des gouttières)
F profondeur des gouttières
G épaisseur de la partie supérieure des parois de gouttières
Figure 4 — Section des gouttières
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ISO 5682-1:2017(F)
Légende
H position prévue de l’arête de la paroi
J longueur totale de la paroi
Figure 5 — Rectitude des parois de gouttières
4.2.3 Partie supérieure des parois de gouttières

a) L’épaisseur de la partie supérieure des parois de gouttières (G à la Figure 4) doit être inférieure

à 1,6 mm.

b) L’épaisseur de la partie inférieure des parois de gouttières (D à la Figure 4) peut varier.

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ISO 5682-1:2017(F)
4.2.4 Dimensions hors tout

Les dimensions hors tout du banc peuvent varier en fonction des besoins (c’est-à-dire nombre de buses,

dimension de la rampe). Le banc doit être suffisamment long et suffisamment large pour correspondre

à la surface pulvérisée par les jets.

Dans les cas où il n’est pas possible de construire un banc permettant de collecter la totalité des sprays

des buses devant faire l’objet du mesurage, il est possible d’utiliser un banc réalisant des mesures

transversales, pas à pas, le long de la rampe.

La tolérance relative à la largeur hors tout du banc doit être telle que spécifiée dans le Tableau 2.

Tableau 2 — Tolérance relative à la largeur
Largeur du banc (W) W ≤ 1 m 1 < W ≤ 3 m 3 < W ≤ 5 m 5 < W ≤ 10 m 10 < W
Tolérance en pourcentage de ±1 % ±0,75 % ±0,6 % ±0,4 % ±0,3 %
la largeur nominale
4.2.5 Systèmes mobiles (pas à pas)

Si la répartition transversale est mesurée au moyen de mesurages transversaux successifs (par exemple,

en utilisant un dispositif de banc mobile ou scanner sur rails) la tolérance relative au déplacement du

banc d’une position à la suivante doit être de ± 10 mm par mètre.
4.3 Distance

L’erreur maximale de l’équipement de mesurage des distances jusqu’à 1 m de long ne doit pas excéder

± 1 mm. Pour les équipements mesurant des distances supérieures à 1 m, l’erreur maximale ne doit pas

excéder 0,1 % de la valeur mesurée.
4.4 Pression

Les exigences minimales relatives aux mesurages de la pression de liquide sont données dans le

Tableau 3. L‘indicateur de pression peut être analogique ou numérique. Les indicateurs de pression

analogiques à aiguille doivent avoir un diamètre minimal de 100 mm et doivent être amortis.

Tableau 3 — Caractéristiques des indicateurs de pression utilisés pour les essais

Pression à mesurer Unité d’échelle max. Exactitude Classe exigée Valeur de pleine

(∆P) échelle
bar bar bar (% d’exactitude de bar
la valeur de pleine
échelle)
1,6 6
0 < ∆P ≤ 6 0,1 ±0,1 1,0 10
0,6 16
1,6 16
6 < ∆P ≤ 16 0,2 ±0,25
1,0 25
2,5 40
∆P > 16 1,0 ±1,0 1,6 60
1,0 100
NOTE 1 bar = 100 kPa pour les conversions du Tableau 3.
Tableau tiré de l’EN 837-1.
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ISO 5682-1:2017(F)
4.5 Temps

L’erreur maximale de l’équipement de mesurage du temps ne doit pas excéder 0,5 % de la durée mesurée.

4.6 Débit

L’erreur maximale de l’équipement de mesurage du débit ne doit pas excéder ± 1,5 % de la plage totale

du dispositif. Les équipements spécifiés en 4.5 et en 4.9 peuvent également être utilisés pour mesurer

un débit.
4.7 Angle

L’erreur maximale des mesurages d’angle effectués au moyen d’un rapporteur, d’un goniomètre ou d’un

instrument numérique ne doit pas excéder ± 0,5°.
4.8 Température et humidité

L’erreur maximale de l’équipement de mesurage de la température ne doit pas excéder ± 1 °C. L’erreur

maximale de l’équipement de mesurage de l’humidité relative ne doit pas excéder ± 5 %.

4.9 Volume et masse

L’erreur maximale de l’équipement de mesurage des volumes et des masses ne doit pas excéder ± 1 % de

la valeur nominale.
4.10 Pression d’air

Pour les systèmes d’atomisation utilisant de l’air sous pression, l’erreur maximale de l’indicateur de

pression ne doit pas excéder ± 5 % de la valeur mesurée.
4.11 Rampe horizontale type de pulvérisation pour les mesures de laboratoire

Le montage de la rampe horizontale type de pulvérisation avec un banc de répartition horizontal

de laboratoire est décrit ci-dessous. L’Annexe G contient également des détails informatifs, mais ne

constitue pas une exigence concernant le montage.

Les buses doivent être placées à l’aplomb des arêtes des parois des gouttières, avec une tolérance

latérale de ± 5 mm.

Un indicateur de pression respectant les exigences du paragraphe 4.4 doit être placé à une position

appropriée dans le système d’alimentation en liquide. La variation du débit des buses ne doit pas

dépasser ± 1,0 % entre chaque emplacement de buse sur la rampe.

Si un antigoutte est présent, la pression doit être mesurée en un point situé en aval de l’antigoutte. Le

mesurage doit être effectué sans le filtre de buse, à moins que celui-ci ne soit considéré comme faisant

partie intégrante de la buse.

La Figure 6 montre un exemple d’indicateur de pression utilisé juste avant la buse pour éviter les pertes

en charge liées aux antigouttes ou au porte-buse. L’instrument d’essai ne doit ni restreindre, ni altérer

le débit ou la pression entre le porte-buse et la buse.
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ISO 5682-1:2017(F)
Légende
1 porte-buse
2 indicateur de pression (équipement d’essai)
3 buse
4 adaptateur en T (équipement d’essai)
Figure 6 — Exemple de mesurage de la pression à la buse
5 Conditions générales d’essai
5.1 Généralités

Les données de fonctionnement et les paramètres d’essai doivent être consignés dans le rapport

d’essai. L’Annexe E fournit un exemple de rapport, mais ne constitue pas une exigence concernant

l’établissement de ce dernier.
5.2 Liquides d’essai
5.2.1 Eau

L’eau doit être propre et exempte de matières solides en suspension, à l’exception de ce qui peut être

considéré comme normal pour l’eau courante (par exemple, le calcaire responsable de la dureté de l’eau).

En cas d’ajout d’un adjuvant ou d’autres produits phytosanitaires, le nom du produit et ses propriétés

doivent être consignés dans le rapport d’essai.
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ISO 5682-1:2017(F)
5.2.2 Liquide abrasif

Le mélange doit être constitué d’eau telle que définie en 5.2.1, à laquelle on ajoute des micrograins

d’oxyde d’aluminium à raison de 20 g/l. L’oxyde d’aluminium doit satisfaire aux exigences énoncées à

l’Annexe D. Le liquide abrasif doit être renouvelé au bout d’un temps (t) correspondant à 50 passages,

selon la formule suivante:
50×V
t =
t est le temps, exprimé en heures (h);
V est le volume de mélange, exprimé en litres (l);
q est le débit, exprimé en litres par heure (l/h).
5.3 Température et humidité relative

La température du liquide d’essai et la température de l’air du local d’essai doivent être comprises entre

5 °C et 35 °C pendant la durée de l’essai. L’humidité relative du local d’essai ne doit pas être inférieure à

30 %. La température et l’humidité relative doivent être indiquées dans le rapport d’essai.

5.4 Paramétrage des grandeurs d’influence du débit des buses
Pendant l’essai, la pression aux buses
...

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