SIST EN ISO 19932-2:2025

SLOVENSKI STANDARD
01-oktober-2025
Nadomešča:
SIST EN ISO 19932-2:2013
Oprema za zaščito poljščin - Nahrbtni škropilniki - 2. del: Preskusne metode (ISO
19932-2:2025)
Equipment for crop protection - Knapsack sprayers - Part 2: Test methods (ISO 19932-
2:2025)
Pflanzenschutzgeräte - Tragbare Geräte - Teil 2: Prüfverfahren (ISO 19932-2:2025)
Matériel de protection des cultures - Pulvérisateurs à dos - Partie 2: Méthodes d'essai
(ISO 19932-2:2025)
Ta slovenski standard je istoveten z: EN ISO 19932-2:2025
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 19932-2
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2025
EUROPÄISCHE NORM
ICS 65.060.40 Supersedes EN ISO 19932-2:2013
English Version
Equipment for crop protection - Knapsack sprayers - Part
2: Test methods (ISO 19932-2:2025)
Matériel de protection des cultures - Pulvérisateurs à Pflanzenschutzgeräte - Tragbare Geräte - Teil 2:
dos - Partie 2: Méthodes d'essai (ISO 19932-2:2025) Prüfverfahren (ISO 19932-2:2025)
This European Standard was approved by CEN on 29 June 2025.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19932-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
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 . 4
European foreword
This document (EN ISO 19932-2:2025) 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 February 2026, and conflicting national standards
shall be withdrawn at the latest by February 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19932-2:2013.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 19932-2:2025 has been approved by CEN as EN ISO 19932-2:2025 without any
modification.
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
This European Standard has been prepared under a Commission’s standardization request “M/396
Mandate to CEN and CENELEC for Standardisation in the field of machinery" and "M/471 Mandate to
CEN for standardisation in the field of machinery for pesticide application" to provide one voluntary
means of conforming to essential requirements of Directive 2006/42/EC of the European Parliament
and of the Council of 17 May 2006 on machinery, and amending Directive 2009/127/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2006/42/EC amended by Directive 2009/127/EC
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC amended by
Directive 2009/127/EC
1. ESSENTIAL HEALTH AND
SAFETY REQUIREMENTS
1.1.2. (a) 5
1.1.2. (c) 5
1.1.2. (e) 8
1.1.3. Materials and products 5.3.8
1.1.5. Design of machinery to 5.6
facilitate its handling
1.1.6. Ergonomics 5.6.
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of 5.3.1, 5.3.2
control systems
1.2.2. Control devices 5.3.1, 5.4.
1.2.3. Starting 5.3.1.
1.2.4. Stopping 5.3.1.
1.2.4.1. Normal stop 5.3.1.
1.2.4.2. Operational stop 5.3.1.
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC amended by
Directive 2009/127/EC
1.2.4.3. Emergency stop Not covered
1.2.5. Selection of control or  Not covered
operating modes
1.2.6. Failure of the power  Not covered
supply
1.3. PROTECTION AGAINST
MECHANICAL HAZARDS
1.3.1. Risk of loss of stability 5.3.4
1.3.2. Risk of break-up during  Not covered
operation
1.3.3. Risks due to falling or 5.3.3, 8.2.
ejected objects
1.3.4. Risks due to surfaces,  Not covered
edges or angles
1.3.7. Risks related to moving  Not covered
parts
1.5. RISKS DUE TO OTHER
HAZARDS
1.5.13. Emissions of hazardous 5.3.4, 5.4, 5.5, 6.2, 7.1, 8.1.1.
materials and substances
2. SUPPLEMENTARY ESSENTIAL
HEALTH AND SAFETY
REQUIREMENTS FOR CERTAIN
CATEGORIES OF MACHINERY
2.4.2. General 5.3.2, 5.3.4, 5.5, 5.6, 6.2, 6.3, 7.1,
7.2, 8.1.1, 8.1.2, 8.2.
2.4.3. Controls and monitoring 5.3.1, 5.3.5
2.4.4. Filling and emptying 5.3.5, 5.3.6, 5.3.7, 5.4, 6.2, 7.1,
8.1.1.
2.4.5. Applications of pesticides  Not covered
2.4.5.1. Application rate 5.3.1, 5.3.2, 6.1.
2.4.5.2. Distribution, deposition  Not covered
and drift of pesticide
2.4.5.3. Tests 5, 6, 7, 8.
2.4.5.4. Losses during stoppage 5.3.1
2.4.6. Maintenance  Not covered
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC amended by
Directive 2009/127/EC
2.4.6.1. Cleaning 5.3.7.
2.4.6.2. Servicing  Not covered
2.4.7. Inspections  Not covered
2.4.8. Marking of nozzles,  Not covered
strainers and filters
2.4.9. Indication of pesticide in  Not covered
use
2.4.10. Instructions  Not covered
WARNING 1 Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
International
Standard
ISO 19932-2
Third edition
Equipment for crop protection —
2025-06
Knapsack sprayers —
Part 2:
Test methods
Matériel de protection des cultures — Pulvérisateurs à dos —
Partie 2: Méthodes d'essai
Reference number
ISO 19932-2:2025(en) © ISO 2025

ISO 19932-2:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 19932-2:2025(en)
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 .3
5.3.1 Spray liquid shut-off device reliability .3
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 harness .5
5.4 Pressure test . .5
5.5 Leakage test .5
5.6 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 .7
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 .10
9 Test report .11
Annex A (informative) Example of a preconditioning device .12
Annex B (informative) Example of a spray liquid 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 . 17
Annex F (informative) Example of test report .18

iii
ISO 19932-2:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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 www.iso.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,in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 144, Tractors and machinery for agriculture and forestry,
in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 19932-2:2013), which has been technically
revised.
The main changes are as follows:
— the scope has been changed to include sprayers with a nominal volume of more than 6 l in order to
address sprayers in professional use only;
— the test methods have been aligned with the modified requirements of ISO 19932-1.
A list of all parts in the ISO 19932 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO 19932-2:2025(en)
Introduction
The application of plant protection products with knapsack sprayers should take into consideration
biological, economic, environmental and operator issues.
The aim of this document is to specify test methods for the verification of requirements for equipment to
ensure safe use and protect the environment.
Implementation of ISO 19932-1:2025 and ISO 19932-2:2025 will achieve an appropriate level of operator
safety and avoid unnecessary dispersal of plant protection products into the environment.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.)
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
v
International Standard ISO 19932-2:2025(en)
Equipment for crop protection — Knapsack sprayers —
Part 2:
Test methods
1 Scope
This document specifies particular test methods for the verification of requirements of ISO 19932-1:2025 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 28139:2019+2019A1:2024.
This document is intended to be applied in conjunction with ISO 19932-1:2025.
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 5681:2020, Equipment for crop protection — Vocabulary
ISO 19932-1:2025, 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 5681:2020 and ISO 19932-1:2025 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
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.

ISO 19932-2:2025(en)
4.4 Strap test device, capable of dropping the sprayer, vertically guided, onto each strap from a height of
(200 ± 10) mm using a horizontal restraining bar that is (75 ± 2) 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.
4.5 Drop test device, to drop the upright sprayer, vertically guided, from a height of (600 ± 20) mm onto
a flat level surface, at least 800 mm × 800 mm × 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. An additional block of the same material shall be provided with the height of
(40 ± 1) mm to be placed on the flat surface as described in 8.2 and as shown 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) 50 kg with a maximum error of ±10 g;
b) 2 kg with a maximum error of ±0,1 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 15 bar with a maximum error of ±5 % of the measured value, except when measuring
engine-driven sprayers when it shall be adjustable up to 50 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 × 40 cm.
4.13 Container, with open top, length and width of which shall be at least 1 m × 0,75 m.
4.14 Ruler, with a maximum error of ±1 mm.
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 4.7 a) and record the mass in kilograms.

ISO 19932-2:2025(en)
5.3 Functional tests
5.3.1 Spray liquid 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 4.3. Connect the shut-off device to a pressurized water supply of (3 ± 0,2) 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 during the test and 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 nozzle supplied for use with the sprayer shall
m
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 , specified in the instruction handbook using
s
Formula (1):
()qq−
ms
σ = ×100 % (1)
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 with full fuel tank, if present, 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 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 and record any damage.
NOTE The combination of mass and drop height yields an acceleration that corresponds to the maximum
acceleration of the filled sprayer when lifted from the ground by the operator.
5.3.4 Stability
Position the empty sprayer with full fuel tank, if present, 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 4.8 or using a device according to 4.7. Continue until
the spray tank is filled to its nominal volume.

ISO 19932-2:2025(en)
Determine the scale error, E, in perce
...