EN ISO 16122-2:2015

Agricultural and forestry machinery - Inspection of sprayers in use - Part 2: Horizontal boom sprayers (ISO 16122-2:2015)

ISO 16122-2:2015, when used together with ISO 16122-1, specifies the requirements and test methods for the inspection of horizontal boom sprayers, when in use. The requirements relate mainly to the condition of the sprayer with respect to its potential risk for the environment and its performance to achieve good application. Requirements for the protection of inspectors during an inspection are given in ISO 16122 1.

Land- und Forstmaschinen - Kontrolle von in Gebrauch befindlichen Pflanzenschutzgeräten - Teil 2: Geräte mit horizontalem Gestänge (ISO 16122-2:2015)

Dieser Teil von ISO 16122 legt in Verbindung mit ISO 16122 1 die Anforderungen und Prüfverfahren für die Kontrolle von in Gebrauch befindlichen Feldspritzgeräten fest.
Die Anforderungen beziehen sich in erster Linie auf den Gerätezustand in Hinblick auf mögliche Risiken für die Umwelt und das Leistungsvermögen zur Erreichung einer guten Anwendung.
ANMERKUNG   Anforderungen in Bezug auf die Sicherheit des Prüfers während der Kontrolle sind in ISO 16122-1 enthalten.

Matériel agricole et forestier - Contrôle des pulvérisateurs en service - Partie 2: Pulvérisateurs à rampe horizontale (ISO 16122-2:2015)

l'ISO 16122-2:2015, lorsqu'elle est utilisée conjointement avec l'ISO 16122-1, spécifie les exigences et les méthodes d'essai relatives au contrôle des pulvérisateurs à rampe horizontale en service. Les exigences concernent principalement l'état de l'équipement eu égard à son risque potentiel pour l'environnement et sa performance pour obtenir une bonne application. Les exigences relatives à la protection des inspecteurs pendant le contrôle sont données dans l'ISO 16122-1.

Kmetijski in gozdarski stroji - Kontrola škropilnikov v uporabi - 2. del: Vodoravni jamborni škropilniki (ISO 16122-2:2015)

General Information

• Status: Published
• Publication Date: 29-Jun-2015
• Withdrawal Date: 29-Sep-2015
• ICS: 65.060.40 - Plant care equipment
• Technical Committee: CEN/TC 144 - Tractors and machinery for agriculture and forestry
• Drafting Committee: CEN/TC 144/WG 3 - Mobile machines and trailers
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Mar-2015
• Due Date: 05-Apr-2015
• Completion Date: 18-Mar-2015
• Directive: 2009/128/EC - Directive 2009/128/EC of the European Parliament and of the Council of 21 october 2009 establsihing a framework for Community action to achieve the sustainable use of pesticides
• Mandate: M/435 - Mandate to CEN, CENELEC and ETSI for the development of a standards on inspection of pesticide application equipment in use,
• Ref Project: SIST EN ISO 16122-2:2015 - Agricultural and forestry machinery - Inspection of sprayers in use - Part 2: Horizontal boom sprayers (ISO 16122-2:2015)

Relations

• Replaces: EN 13790-1:2003 - Agricultural machinery - Sprayers - Inspection of sprayers in use - Part 1: Field crop sprayers
• Effective Date: 11-Apr-2012

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 16122-2:2015
01-junij-2015
1DGRPHãþD
SIST EN 13790-1:2004

Kmetijski in gozdarski stroji - Kontrola škropilnikov v uporabi - 2. del: Vodoravni

jamborni škropilniki (ISO 16122-2:2015)

Agricultural and forestry machinery - Inspection of sprayers in use - Part 2: Horizontal

boom sprayers (ISO 16122-2:2015)
Land- und Forstmaschinen - Kontrolle von in Gebrauch befindlichen

Pflanzenschutzgeräten - Teil 2: Geräte mit horizontalem Gestänge (ISO 16122-2:2015)

Matériel agricole et forestier - Contrôle des pulvérisateurs en service - Partie 2:

Pulvérisateurs à rampe horizontale (ISO 16122-2:2015)
Ta slovenski standard je istoveten z: EN ISO 16122-2:2015
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
SIST EN ISO 16122-2:2015 en

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

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SIST EN ISO 16122-2:2015
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SIST EN ISO 16122-2:2015
EUROPEAN STANDARD
EN ISO 16122-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 65.060.40 Supersedes EN 13790-1:2003
English Version
Agricultural and forestry machinery - Inspection of sprayers in
use - Part 2: Horizontal boom sprayers (ISO 16122-2:2015)

Matériel agricole et forestier - Contrôle des pulvérisateurs Land- und Forstmaschinen - Kontrolle von in Gebrauch

en service - Partie 2: Pulvérisateurs à rampe horizontale befindlichen Pflanzenschutzgeräten - Teil 2: Geräte mit

(ISO 16122-2:2015) horizontalem Gestänge (ISO 16122-2:2015)
This European Standard was approved by CEN on 13 September 2014.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same

status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16122-2:2015 E

worldwide for CEN national Members.
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SIST EN ISO 16122-2:2015
EN ISO 16122-2:2015 (E)
Contents Page

Foreword ..............................................................................................................................................................3

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2009/128/EC ........................................................................................4

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SIST EN ISO 16122-2:2015
EN ISO 16122-2:2015 (E)
Foreword

This document (EN ISO 16122-2:2015) has been prepared by Technical Committee ISO/TC 23 “Tractors and

machinery for agriculture and forestry“ in collaboration with Technical Committee CEN/TC 144 “Tractors and

machinery for agriculture and forestry” the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by September 2015, and conflicting national standards shall be

withdrawn at the latest by September 2015.

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

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 13790-1:2003.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech

Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 16122-2:2015 has been approved by CEN as EN ISO 16122-2:2015 without any modification.

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SIST EN ISO 16122-2:2015
EN ISO 16122-2:2015 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2009/128/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide one means of conforming to Essential Requirements of

the New Approach Directive 2009/128/EC Sustainable use of pesticides.

Once this standard is cited in the Official Journal of the European Union under that Directive and has been

implemented as a national standard in at least one Member State, compliance with the normative clauses of

this standard confers, within the limits of the scope of this standard, a presumption of conformity with the

relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling within the

scope of this standard.
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SIST EN ISO 16122-2:2015
INTERNATIONAL ISO
STANDARD 16122-2
First edition
2015-03-15
Agricultural and forestry
machinery — Inspection of sprayers in
use —
Part 2:
Horizontal boom sprayers
Matériel agricole et forestier — Contrôle des pulvérisateurs en
service —
Partie 2: Pulvérisateurs à rampe horizontale
Reference number
ISO 16122-2:2015(E)
ISO 2015
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015

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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

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

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

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

4 Requirements and method of verification ................................................................................................................................. 2

4.1 Leaks and dripping .............................................................................................................................................................................. 2

4.2 Pump(s) ......................................................................................................................................................................................................... 2

4.3 Spray mix agitation.............................................................................................................................................................................. 3

4.4 Spray liquid tank ................................................................................................................................................................................... 3

4.5 Measuring systems, controls and regulation systems ........................................................................................... 4

4.6 Lines (pipes and hoses) ................................................................................................................................................................... 6

4.7 Filters .............................................................................................................................................................................................................. 6

4.8 Spray boom ................................................................................................................................................................................................ 6

4.9 Nozzles ........................................................................................................................................................................................................... 9

4.10 Blower .........................................................................................................................................................................................................10

4.11 Spray guns and lances ....................................................................................................................................................................10

5 Test methods ..........................................................................................................................................................................................................11

5.1 Test facilities...........................................................................................................................................................................................11

5.2 Spray and agitation pump(s) ...................................................................................................................................................11

5.3 Sprayer’s pressure indicators ..................................................................................................................................................12

5.4 Flow meters for controlling the volume/hectare rate .......................................................................................13

5.5 System for controlling forward speed ..............................................................................................................................14

5.6 Uniformity of the transverse volume distribution with a horizontal patternator .....................15

5.7 Flow rate of the spray nozzles ................................................................................................................................................16

5.8 Pressure drop ........................................................................................................................................................................................17

5.9 Pressure variation when the sections are closed ...................................................................................................17

5.10 Pressure variation when the spray is switched off ...............................................................................................17

5.11 Pressure distribution ......................................................................................................................................................................17

Bibliography .............................................................................................................................................................................................................................18

© ISO 2015 – All rights reserved iii
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(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. 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. 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 meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

ISO 16122-2 was prepared by the European Committee for Standardization (CEN) Technical Committee

CEN/TC 144, Tractors and machinery for agriculture and forestry, in collaboration with ISO Technical

Committee TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 6, Equipment

for crop protection, in accordance with the Agreement on technical cooperation between ISO and CEN

(Vienna Agreement).

ISO 16122 consists of the following parts, under the general title Agricultural and forestry machinery —

Inspection of sprayers in use:
— Part 1: General
— Part 2: Horizontal boom sprayers
— Part 3: Sprayers for bush and tree crops
— Part 4: Fixed and semi-mobile sprayers
iv © ISO 2015 – All rights reserved
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
Introduction
There are two main reasons for the inspection:

— less potential risk of environmental contamination by plant protection products;

— good control of the pest with the minimum possible input of plant protection product.

In order to use plant protection products in agricultural production safely, it is necessary to define the

requirements and test methods for sprayers in use. This is a relevant step after having standardized

minimum requirements for new sprayers, in respect of safety hazards (see ISO 4254-6) and potential

risks of environmental contamination (see ISO 16119 series).

Standardizing the requirements and methods for inspection of sprayers in use, takes into consideration

not only the original performance of the sprayer but also its use, care and maintenance. This is a logical

link to ensure the continued benefit arising from the supply of new sprayers of good quality.

The inspection of sprayers in use can be a mandatory requirement or adopted on a voluntary basis. In

both cases further requirements, outside the scope of this standard, are necessary for the management

of inspections. These include, for example, requirements for the competence of persons carrying out

inspections and the frequency of inspections.

NOTE National or local regulations may also apply concerning the qualifications and competence of

inspectors.
© ISO 2015 – All rights reserved v
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SIST EN ISO 16122-2:2015
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SIST EN ISO 16122-2:2015
INTERNATIONAL STANDARD ISO 16122-2:2015(E)
Agricultural and forestry machinery — Inspection of
sprayers in use —
Part 2:
Horizontal boom sprayers
1 Scope

This part of ISO 16122, when used together with ISO 16122-1, specifies the requirements and test

methods for the inspection of horizontal boom sprayers, when in use.

The requirements relate mainly to the condition of the sprayer with respect to its potential risk for the

environment and its performance to achieve good application.

NOTE Requirements for the protection of inspectors during an inspection are given in ISO 16122-1.

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 5682-2:1997, Equipment for crop protection — Spraying equipment — Part 2: Test methods for hydraulic

sprayers

ISO 16122-1:2015, Agricultural and forestry machinery — Inspection of sprayers in use — Part 1: General

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 16122-1 and the following

apply.
3.1
horizontal boom sprayer

machine for spraying plant protection products, along a boom or in bands, with a spray generally

directed downwards onto/into the target

Note 1 to entry: Characteristics of horizontal boom sprayers are specified in ISO 16122-1:2015, Table A.1.

3.2
plant protection product container
collective name for plant protection product packaging
EXAMPLE Can, bottle, bag, sack, box.
3.3
cleaning device
device for cleaning the inside of empty plant protection product containers

Note 1 to entry: The device may be an integral part of the sprayer or an independent installation (e.g. stationary

equipment).
© ISO 2015 – All rights reserved 1
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
4 Requirements and method of verification
4.1 Leaks and dripping
4.1.1 Static leaks
The sprayer shall be filled with water to its nominal capacity.

With the pump not running and the sprayer parked on a level horizontal surface, a visual inspection for

any leakage from the tank, pump and associated pipes shall be carried out.

For high capacity tanks, water filling can be reduced to no less than half of the nominal tank volume,

provided an additional inspection of the tank is carried out in order to identify any cracks, holes or other

damage that can cause leakage.
Compliance shall be checked by inspection.
4.1.2 Dynamic leaks
4.1.2.1 Leak test when not spraying

With the sprayer running at a pressure which is equal to the maximum obtainable pressure for the

system, with the section valves closed, there shall be no leakage from any part of the sprayer.

Compliance shall be checked by inspection.
4.1.2.2 Leak test while spraying

While spraying at a pressure that is equal to the maximum working pressure recommended by the

sprayer manufacturer, or the nozzle manufacturer for the nozzles mounted on the sprayer if lower, there

shall be no leakage from any part of the sprayer or spray boom.
Compliance shall be checked by inspection.
4.1.3 Spraying and dripping on parts

Regardless of the height of the boom above the ground, in the height range between the nozzles and the

target surface, no liquid shall be sprayed directly on to the sprayer itself (e.g. parts of the sprayer, hoses).

This does not apply if needed by function (e.g. sensors) and if dripping is minimised.

Compliance shall be checked by inspection and function test.
4.2 Pump(s)
4.2.1 Capacity
The pump capacity shall be suited to the needs of the sprayer.

a) The pump capacity shall be at least 90 % of its original nominal flow given by the sprayer

manufacturer or another minimum pump capacity given by the sprayer manufacturer.
Compliance shall be checked by measurement according to 5.2.1.2.2 or 5.2.1.2.3.

b) Or, alternatively, the pump(s) shall have sufficient flow rate capacity in order to be able to spray

while maintaining a visible agitation as specified in 4.3.1.
Compliance shall be checked by inspection.
2 © ISO 2015 – All rights reserved
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
4.2.2 Pulsations
The pulsations shall not exceed 10 % of the working pressure.
Compliance shall be checked by measurement and function test according to 5.2.2.
4.2.3 Air chamber

If an air chamber is present the membrane shall not be damaged, there shall be no appearance of liquid

when operated at the maximum pressure recommended by the sprayer manufacturer. The air pressure

shall be the pressure recommended by the sprayer manufacturer or between 30 % and 70 % of the

working pressure for the nozzles in use.
Compliance shall be checked by function test and measurement.
4.3 Spray mix agitation
4.3.1 Hydraulic
A clearly visible agitation shall be maintained:

— when spraying at the maximum working pressure as recommended by the sprayer or nozzle

manufacturer (whichever is the lower);
— with the largest nozzles mounted on the sprayer;
— with pump rotation speed as recommended by the sprayer manufacturer;
— with the tank filled to half its nominal capacity.
Compliance shall be checked by inspection.
4.3.2 Mechanical

A clearly visible agitation shall be maintained when the agitation system is working as recommended by

the sprayer manufacturer, with the tank filled to half its nominal capacity.
Compliance shall be checked by inspection.
4.4 Spray liquid tank
4.4.1 Lid

The tank shall be provided with a lid that shall be well adapted and in good condition.

This lid shall be tightly sealed to prevent leakage and shall avoid unintended opening.

If a vent is fitted in the lid (according to 4.4.4), it shall prevent spillage.
Compliance shall be checked by inspection.
4.4.2 Filling hole(s)
There shall be a strainer in good condition in the filling hole(s).
Compliance shall be checked by inspection.
© ISO 2015 – All rights reserved 3
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
4.4.3 Induction hopper
If there is an induction hopper, it shall:

— prevent any object greater than 20 mm diameter from entering into the sprayer tank — compliance

shall be checked by measurement;
— function and not leak — compliance shall be checked by function test.
4.4.4 Pressure compensation

There shall be a pressure compensation device to avoid over-pressure and under-pressure in the tank.

Compliance shall be checked by inspection.
4.4.5 Tank content indicator(s)

The volume of liquid in the tank shall be clearly readable from the driver’s position and/or from where

the tank is filled.
Compliance shall be checked by inspection.
4.4.6 Tank emptying
It shall be possible to
— empty the tank e.g. using a tap, and

— collect the liquid without contamination of the environment and without potential risk of exposure

of the operator.
Compliance shall be checked by inspection.
4.4.7 Tank filling

If there is a water filling device on the sprayer, water from the sprayer shall be prevented from returning

to the water source, e.g. by means of a non-return valve.
Compliance shall be checked by inspection and function test.
4.4.8 Cleaning device for plant protection product containers

If provided, the cleaning device for plant protection product containers shall function.

Compliance shall be checked by inspection and function test.
4.4.9 Cleaning equipment

If provided, tank cleaning devices, devices for external cleaning, devices for cleaning of induction

hoppers, and devices for the internal cleaning of the complete sprayer, shall function.

Compliance shall be checked by inspection and function test.
4.5 Measuring systems, controls and regulation systems
4.5.1 General

All devices for measuring, indicating and/or adjusting the pressure and/or flow rate shall function.

The valves for switching on or off the spray shall function.
4 © ISO 2015 – All rights reserved
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
Switching on and off of all nozzles shall be possible simultaneously.

The controls to be operated during spraying shall be operable from the operator`s position and the

instrument displays shall be readable from this position.

NOTE Turning of the head and the upper body is acceptable to achieve these requirements.

Compliance shall be checked by inspection and function test.
Switching on and off individual boom sections shall be possible.
Compliance shall be checked by inspection and function test.
4.5.2 Pressure indicator
4.5.2.1 Scale and dimension of pressure indicator

At least one digital or analogue pressure indicator shall be fitted at a position where it is clearly readable

from the operator’s position. Pressure indicators shall be suitable for the working pressure range used.

Compliance shall be checked by inspection.
4.5.2.2 Scale of analogue pressure indicator
The scale of analogue pressure indicators shall provide graduations:
— at least every 0,2 bar for working pressures less than 5 bar;
— at least every 1,0 bar for working pressures between 5 bar and 20 bar;
— at least every 2,0 bar for working pressures more than 20 bar.
Compliance shall be checked by inspection.
4.5.2.3 Accuracy of pressure indicator
The accuracy of the pressure indicator shall be
— ± 0,2 bar for working pressures at 2 bar and below,
— ± 10 % of the real value for pressures at 2 bar and above.

This requirement shall be achieved within the working pressure range suitable for the nozzles mounted

on the sprayer under test.
Compliance shall be checked by measurement according to 5.3.
4.5.2.4 Diameter of analogue pressure indicator

For analogue pressure indicators the minimum diameter shall be 63 mm, except for those mounted on

spray guns and lances which shall have a minimum diameter of 40 mm.
Compliance shall be checked by measurement.
4.5.3 Other measuring devices

Measuring devices other than pressure indicators, especially flow meters and forward speed sensors

used for controlling the volume/hectare rate, shall measure within a maximum error of ± 5 % of the

value read on the reference instrument within the range of the measuring device.
2 5 2
1) 1 bar = 0,1 MPa = 0,1 N/mm = 10 N/m .
© ISO 2015 – All rights reserved 5
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SIST EN ISO 16122-2:2015
ISO 16122-2:2015(E)
Compliance shall be checked by measurement according to 5.4 and 5.5.
4.5.4 Pressure adjusting devices

All devices for adjusting pressure shall maintain a constant pressure with a tolerance of ± 10 % at

constant setting and shall return within 10 s to the original working pressure ± 10 % after the sprayer

has been switched off and on again.
Compliance shall be checked by function test and measurement according to 5.10.
4.6 Lines (pipes and hoses)

Lines shall not show excessive bending, corrosion and abrasion through contact with surrounding

surfaces. Lines shall be free from defects such as excessive surface wear, cuts or cracks.

Compliance shall be checked by inspection.
4.7 Filters
4.7.1 Filter presence

There shall be at least one filter on the discharge side of the pump and, in the case of positive displacement

pumps, one filter on the suction side.
NOTE Nozzle filters are not considered as discharge side filters.

The filter(s) shall be in good condition and the mesh size shall correspond to the nozzles fitted according

to the instructions of the nozzle manufacturer.
Compliance shall be checked by examination of specification and inspection.
4.7.2 Isolating device

It shall be possible, with the tank filled to its nominal volume, to clean filters without any spray liquid

leaking
...