kSIST FprEN ISO 19932-2:2019

Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO/FDIS 19932-2:2019)

2020-11-20 JF: Through decision BT C215/2020, taken on 2020-11-18, CEN/BT approved the cancellation of WI.
2020-08-28 ISO CS informed about breaking Vienna Agreement
2019-05-07 JF The wrong standard was included in the request for the assessment of the formal vote standard The new request is necessery.

Pflanzenschutzgeräte - Tragbare Geräte - Teil 2: Prüfverfahren (ISO/FDIS 19932-2:2019)

Matériel de protection des cultures - Pulvérisateurs à dos - Partie 2: Méthodes d'essai (ISO/FDIS 19932-2:2019)

Oprema za zaščito poljščin - Nahrbtni škropilniki - 2. del: Preskusne metode (ISO/FDIS 19932-2:2019)

General Information

• Status: Not Published
• Public Enquiry End Date: 21-Jun-2017
• ICS: 65.060.40 - Plant care equipment
• Technical Committee: IMKG - Machinery for agriculture and forestry
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 18-Mar-2019
• Due Date: 06-May-2019
• Completion Date: 19-Mar-2019
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: FprEN ISO 19932-2 - Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO/FDIS 19932-2:2019)

Relations

• Revised: SIST EN ISO 19932-2:2013 - Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO 19932-2:2013)
• Effective Date: 20-Jan-2016
• Revised: SIST EN ISO 19932-2:2013 - Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO 19932-2:2013)
• Effective Date: 18-Jan-2023
• Revised: SIST EN ISO 19932-2:2013 - Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO 19932-2:2013)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 19932-2:2017
01-junij-2017
2SUHPD]D]DãþLWRSROMãþLQ1DKUEWQLãNURSLOQLNLGHO3UHVNXVQHPHWRGH
,62',6
Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO/DIS
19932-2:2017)
Pflanzenschutzgeräte - Tragbare Geräte - Teil 2: Prüfverfahren (ISO/DIS 19932-2:2017)
Matériel de protection des cultures - Pulvérisateurs à dos - Partie 2: Méthodes d'essai
(ISO/DIS 19932-2:2017)
Ta slovenski standard je istoveten z: prEN ISO 19932-2
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
oSIST prEN ISO 19932-2:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 19932-2:2017

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oSIST prEN ISO 19932-2:2017
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19932-2
ISO/TC 23/SC 6 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2017-03-30 2017-06-21
Equipment for crop protection — Knapsack sprayers —
Part 2:
Test methods
Matériel de protection des cultures — Pulvérisateurs à dos —
Partie 2: Méthodes d’essai
ICS: 65.060.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 19932-2:2017(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2017

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oSIST prEN ISO 19932-2:2017
ISO/DIS 19932-2:2017(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. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

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oSIST prEN ISO 19932-2:2017
ISO/DIS 19932-2:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test liquids and equipment . 1
5 General . 2
5.1 Test conditions . 2
5.2 Sprayer . 2
5.3 Functional tests . 2
5.3.1 Shut-off device reliability . 2
5.3.2 Spray liquid output . 3
5.3.3 Load carrying straps and their fixation points . 3
5.3.4 Stability . 3
5.3.5 Contents gauge scale and total volume . 3
5.3.6 Filling rate . 4
5.3.7 Emptying. 4
5.3.8 Absorbency of carrying straps . 5
5.4 Leakage test . 5
5.5 Centre of gravity . 6
6 Specific tests for lever-operated knapsack sprayers . 7
6.1 Preconditioning . 7
6.2 Volume of the external surface deposit . 8
6.3 Volume of total residual liquid . 8
6.4 Drop test . 8
7 Specific tests for engine- or motor-driven knapsack sprayers . 9
7.1 Volume of external surface deposit . 9
7.2 Volume of total residual liquid . 9
8 Specific tests for compression sprayers .10
8.1 Volume test .10
8.1.1 Volume of external surface deposit.10
8.1.2 Volume of total residual liquid .10
8.2 Drop test .11
9 Test report .11
Annex A (informative) Example of a preconditioning device .12
Annex B (informative) Example of a shut-off test device .13
Annex C (informative) Example of a strap test device .14
Annex D (informative) Example of drop test device .15
Annex E (informative) Example of filling device .16
Annex F (normative) Minimum content of test report .18
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC amended by Directive 2009/127/EC
aimed to be covered .23
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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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 19932-2 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture
and forestry, Subcommittee SC 6, Equipment for crop protection.
This second edition cancels and replaces the first edition (ISO 19932-1:2013), which has been technically
revised.
A list of all parts in the ISO 19932- series can be found on the ISO website.
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oSIST prEN ISO 19932-2:2017
ISO/DIS 19932-2:2017(E)

Introduction
The application of plant protection products with knapsack sprayers should take into consideration
biological, economic, environmental and operator issues.
The aim of this part of ISO 19932 is to specify test methods for the verification of requirements for
equipment to ensure safe use and protect the environment.
Implementation of parts 1 and 2 of ISO 19932 should achieve an appropriate level of operator safety and
avoid unnecessary dispersal of plant protection products into the environment.
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oSIST prEN ISO 19932-2:2017
DRAFT INTERNATIONAL STANDARD ISO/DIS 19932-2:2017(E)
Equipment for crop protection — Knapsack sprayers —
Part 2:
Test methods
1 Scope
This part of ISO 19932 specifies test methods for the verification of requirements of ISO/DIS 19932-1
for knapsack sprayers carried on the back or shoulder of the operator for use with plant protection
products.
It is applicable to lever-operated knapsack sprayers, knapsack compression sprayers and knapsack
sprayers driven by an engine or electric motor using hydraulic pressure atomization of the spray liquid
intended to be used primarily in agriculture, forestry and horticulture with a nominal volume of more
than 6,0 l.
It does not apply to knapsack combustion engine-driven air-blast sprayers covered by ISO 28139.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 5681:1992, Equipment for crop protection — Vocabulary
ISO/DIS 19932-1, Equipment for crop protection — Knapsack sprayers — Part 1: Safety and environmental
requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5681 and ISO/DIS 19932-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
4 Test liquids and equipment
4.1 Water, clean and free from solids.
4.2 Preconditioning device, allowing holding of the sprayer and the operation of the lever-operated
knapsack sprayer pump lever continuously. The stroke and frequency shall be adjustable. An example is
given in Annex A.
4.3 Shut-off device test equipment, consisting of a frame to fix the hand-held part of the shut-off
device and a unit for moving the shut-off device control, e.g. valve lever, to open it periodically with an
induced flow at the prescribed rate and pressure. The stroke shall be adjustable. An example is given in
Annex B.
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4.4 Strap test device, capable of dropping the sprayer, vertically guided, onto each strap from a height
of 200 mm using a horizontal restraining bar that is 75 mm in diameter. The device is to be capable of
testing sprayers with one or two upper and/or lower fixing points. An example is given in Annex C. Other
devices with equivalent performance can be used.
WARNING — This test device presents an element of risk when the test is underway. All
personnel shall either be kept out of the test area or otherwise protected from hazards such as
parts displaced from the sprayer on test.
4.5 Drop test device, to drop the upright sprayer, vertically guided, from a height of (600 ± 20) mm
onto a flat level surface, 800 mm x 800 mm x 50 mm in height, made of high density polythene (HDPE) or
hard wood placed on a flat level floor. The device shall not affect the impact force of the dropped sprayer.
An example is given in Annex D. Other devices with equivalent performance can be used.
4.6 Filling device, by which the volume and flow of water or test liquid can be controlled and adjusted.
An example is given in Annex E. Other devices with equivalent performance can be used.
4.7 Weighing devices, with the ability to weigh up to:
a) 25 kg with a maximum error of ± 100 g;
b) 2 kg with a maximum error of ± 10 g.
4.8 Measuring cylinder, for measuring volumes of up to 1 l with a maximum error of ± 10 ml.
4.9 Timer (stop watch), with a maximum error of ± 0,5 s for measuring periods up to 5 min.
4.10 Pressure supply device, to place the sprayer under pressure using air or water. The pressure shall
be adjustable up to 10 bar with a maximum error of ± 5 % of the measured value.
4.11 Pressure gauges, to measure the pressure with a maximum error of 5 %.
4.12 Polythene bags, the size of which shall be at least 30 cm x 40 cm.
4.13 Polythene sheets, the size of which shall be at least 2 m x 1 m.
5 General
5.1 Test conditions
The tests shall be performed with one new specimen of the sprayer type at an air temperature of 10 °C
to 30 °C and relative air humidity of at least 30 %, with no influence of wind or sunlight.
5.2 Sprayer
Assemble the knapsack sprayer in accordance with the instruction handbook. Inspect for tightness of
the filling cap, gland nut and other operator controlled couplings. Weigh the complete empty sprayer
using a weighing device according to section 4.7 a) and record the mass in kilograms.
5.3 Functional tests
5.3.1 Shut-off device reliability
Detach the shut-off device assembly with the spray lance from the sprayer and mount it on a frame
according to section 4.3. Connect the shut-off device to a pressurized water supply of (3 ± 0,2)
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bar. Fully activate the shut-off device using a frequency of (15 ± 5) cycles/min for a total duration
of 25 000 cycles. Inspect functionality and record any leakage occurring within 1 min ± 5 s after
completion of the last cycle.
5.3.2 Spray liquid output
The spray liquid output rate q of the sprayer for each combination of nozzle/pressure regulator
m
supplied for use with the sprayer shall be measured with a maximum error of ± 1 % at the optimum
spray pressure specified in the instruction handbook or at the setting specified in the instruction
handbook. Record the spray liquid output and calculate the percentage deviation σ from the values q
s
specified in the instruction handbook using the following equation:
q
m
σ =×100%
q
s
5.3.3 Load carrying straps and their fixation points
WARNING — This test has an element of risk. All personnel shall either be kept out of the test
area or otherwise protected from hazards such as parts displaced from the sprayer on test.
Fill the spray tank with water so that the total mass of the sprayer is 7 kg ± 100 g. If the empty mass of
the sprayer is over 7 kg the test shall be carried out with the sprayer empty and if the maximum mass
of the sprayer filled to the nominal volume is below 7 kg record the mass and test at this mass. Attach
the sprayer to a strap test device according to section 4.4 so that each load carrying strap can be tested
individually. From the position where the sprayer is carried by a strap in the device, lift the sprayer
vertically (200 ± 20) mm and let the sprayer drop. Repeat this 10 times for each load carrying strap.
Inspect for damage.
5.3.4 Stability
Position the empty sprayer on a flat hard surface with an incline of 8,5° ± 0,2° so that the load carrying
straps are facing down the slope. Set any lever and the lance in the park position specified by the
manufacturer. If there are no park positions, set the lever in its highest position with the lance down
the slope.
Check the stability of the sprayer by rotating it at 90° intervals.
Repeat the test with the spray tank filled to the nominal volume.
Record any position in which the sprayer does not remain upright without being touched.
5.3.5 Contents gauge scale and total volume
Place the empty sprayer in an upright position on a flat horizontal surface with any lever in the park
position.
Measure and record the volume between the graduations on the spray tank contents gauge scale when
filling the spray tank using a measuring cylinder according to section 4.8 or using a device according to
section 4.7. Continue until the spray tank is filled to its nominal volume.
Determine the scale error E in percentage using the following equation:
VV−
sm
E= ×100%
V
s
where
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ISO/DIS 19932-2:2017(E)

V is the volume according to the spray tank scale, in millilitres (ml);
s
V is the measured volume of water filled into the spray tank, in millilitres (ml).
m
As a second part of the test, fill the spray tank to the upper edge of the filling opening.
For lever-operated sprayer and engine- or motor-driven sprayers, insert the filling filter and close the
tank lid.
For compression sprayers, insert and tighten the air pump and remove all liquid from an integrated
filling funnel. If the filling opening is situated below any parts of the spray tank, so that air pockets
are formed, remove the hose and fill the sprayer through the spray tank outlet opening with air pump
mounted.
Weigh the sprayer using a device according to section4.7 a).
Determine the total volume V by the difference between the mass of the completely filled sprayer and
t
the mass registered in 5.2.
Calculate the additional volume V of the spray tank in percentage using the following equation:
A
VV−
t n
V = ×100%
A
V
n
where V is the nominal volume.
n
5.3.6 Filling rate
This test shall be carried out on a complete sprayer, empty at the start of the test, as described in 5.2.
Wash all external surfaces of the sprayer with a non-ionic surfactant aqueous solution of 0,5 % and then
dry them.
Put any lever and spray lance in the park position. Remove the spray-tank lid or the air pump, as
appropriate, but keep the filling filter in position.
Position the sprayer in the centre of a polythene sheet according to section 4.13.
Position a filling device according to section 4.6 with its outlet placed 100 mm ± 5 mm above the filling
opening. The sprayer shall be positioned with its straps opposite to the filling device with the line
connecting the upper strap fixing points orientated perpendicularly to the axis of the filling device (see
Annex E). The impact point of the test liquid shall be the middle of the filling opening.
Fill the filling device with a volume of water to its maximum volume without overspill.
Pour a volume of water that equates to the nominal spray-tank volume from the filling device into the
filling opening of the sprayer to simulate filling of the sprayer. The flow rate from the filling device shall
be such that the nominal tank volume will be poured within 60 s with a maximum flow rate deviation
of 10 %.
Wipe off any external residues on the sprayer with a tissue. Determine the amount of splashes as
the mass of the collected splashes on the polythene sheet according to section 4.13 and the tissue,
considering their tare, using a weighing device according to section 4.7 b).
5.3.7 Emptying
This test shall be carried out on a complete sprayer, empty at the start of the test, as described in 5.2.
Fill the sprayer with water to its nominal volume. Drain the sprayer in accordance with the instruction
handbook. Fill the sprayer again and drain according to the instruction handbook and then weigh it
using a weighing device [4.7 a)].
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oSIST prEN ISO 19932-2:2017
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Determine the amount of liquid remaining in the sprayer as the difference between the mass of the
drained sprayer and the mass recorded before it was filled with water.
5.3.8 Absorbency of carrying straps
This test shall be performed with relative air humidity of 50 % to 70 %.
Dismount the carrying straps with padding and remove any metal or plastic parts attached to them
before immersion (in order to minimize, as far as possible, the dry mass of the straps) and weigh them
dry using a weighing device according to section 4.7 b). Completely immerse the straps in water for 2
min. Remove the straps from the water, shake off surplus liquid and hang freely from one end to drain
for 10 min before re-weighing.
Calculate the mass increase Δm in percentage using the following equation:
mm−
ab
Δm= ×100%
m
b
where
m is the mass before the test;
b
m is the mass after the test.
a
NOTE The test method will be revised when sufficient data are available.Pressure test
WARNING — This test has an element of risk. All personnel shall either be kept out of the test
area or otherwise protected from hazards such as parts displaced from the sprayer on test.
Lever-operated sprayers to be tested shall first have been subjected to the drop test (6.2).
Fill the spray tank with water to its nominal volume. Connect the outlet of the shut-off device to an
external pressure supply device according to section 4.10.
Lever-operated sprayers and engine or motor-driven sprayers are tested with the spray-tank lid
removed from the filling opening. Compression sprayers are tested with the spray-tank closed using air
pump and lid, if if part of original equipment of the sprayer.
Deactivate any pressure relieve valve and raise the pressure until the pressure level is two times the
specified maximum working pressure and maintain that pressure for 30 s.
Record the result of the test.
5.4 Leakage test
This test shall be carried out on a complete sprayer, completely empty at the start of the test, as
described in 5.2. Lever-operated and engine- or motor-driven sprayers shall first have been subjected
to the pressure test (5.4).
If a handle attached to the tank lid or the air pump is provided with the sprayer, a handle test shall be
conducted before testing the leakage. To test the handle, fill the spray tank with water to its nominal
volume and close the spray tank opening with the tank lid or the air pump and wipe off all residues of
liquid on external surfaces. Attach an additional weight to the sprayer equivalent to its full gross mass.
Attach the sprayer with the handle to a frame with the help of a strap of a minimum width of 50 mm
and let it freely hang for 2 min. Remove the sprayer from the frame and detach the additional weight.
Pressurize the sprayer to the maximum pressure specified in the instruction handbook and spray for
(10 ± 1) s ensuring that no spray liquid contaminates the external surface of the sprayer. Replace the
spray nozzle with a blank to block output and wipe off all residues of liquid on external surfaces.
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oSIST prEN ISO 19932-2:2017
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Place the sprayer in an upright position on a polythene sheet according to section 4.13. Allow the
sprayer lance with hose and closed shut-off device to hang freely.
Leave the sprayer for (300 ± 5) s and depressurise the tank immediately ensuring there is no leakage.
Repeat the test above twice, first with the sprayer inclined at 45° (strap side facing down) position for
(60 ± 1) s and then with the sprayer in horizontal (strap side down) position for (60 ± 1) s.
Examine for leakage for each test separately.
Wipe off any residues on the external surfaces of the sprayer with a tissue.
Determine the amount of leakage as the mass of the collected water on the polythene sheet (4.13) and
the tissue, considering their tare, using a weighing device according to section 4.7 b).
5.5 Centre of gravity
Fill the sprayer tank with water to its nominal volume. Put the sprayer frame with its back part on a
weighing device according to section 4.7 a) and with the front part on fixed points using an angle iron
or similar equipment with minimal contact area as shown in Figure 1. Level the sprayer so that the back
support of the harness is vertical. Put the spray lance and pump lever, if any, in the operating position.
Measure the weight m and the distance l and calculate the distance l of the centre of gravity using the
1 c
following equation:
l = l + l
c 1 f
ml×
1
l =
1
m
where
M is the full gross weight of the sprayer;
l is the distance from the back support of the harness to the front part fix point.
f

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Key
1 weighing point
2 fixed point
3 centre of gravity
4 weighing balance according to section 4.7 a)
l distance from weighting point (1) to the front part fix point (2)
l distance from the back support of the harness to the front part fix point
f
Figure 1 — Determination of the centre of gravity
6 Specific tests for lev
...