ISO 15886-2:2021
(Main)Agricultural irrigation equipment — Sprinklers — Part 2: Design and operation requirements
Agricultural irrigation equipment — Sprinklers — Part 2: Design and operation requirements
This document specifies the design and operational requirements of irrigation sprinklers and their test methods. The term sprinkler is used in this document in a broad generic sense and it means to cover a wide variety of products as classified by ISO 15886‑1. This document applies to rotating sprinklers. This document is applicable to sprinklers intended for installation on a pipe lateral and for operation with irrigation water.
Matériel agricole d'irrigation — Asperseurs — Partie 2: Exigences de conception et de fonctionnement
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INTERNATIONAL ISO
STANDARD 15886-2
First edition
2021-06
Agricultural irrigation equipment —
Sprinklers —
Part 2:
Design and operation requirements
Matériel agricole d'irrigation — Asperseurs —
Partie 2: Exigences de conception et de fonctionnement
Reference number
ISO 15886-2:2021(E)
©
ISO 2021
---------------------- Page: 1 ----------------------
ISO 15886-2:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 15886-2:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative reference . 1
3 Terms and definitions . 1
4 General requirements . 3
4.1 Materials . 3
4.2 Manufacture and installation . 3
4.3 Connections . 3
4.4 Performance requirements . 3
5 General test conditions . 4
5.1 Accuracy of measuring devices . 4
5.2 Test pressure. 4
5.3 Test liquid . 4
5.4 Atmospheric conditions . 4
6 Strength tests . 4
6.1 Construction and parts test. 4
6.2 Resistance of threaded connections test . 5
6.2.1 Threaded connections to riser . 5
6.2.2 Nozzle threads intended for threaded connection . 5
6.3 Resistance to hydrostatic pressure at ambient temperature test . 5
6.3.1 General. 5
6.3.2 Metal sprinklers . . 5
6.3.3 Plastics sprinklers. 5
6.4 Resistance to hydrostatic pressure at high temperature test . 5
6.5 Watertightness test . 6
7 Operating tests . 6
7.1 General . 6
7.2 Installation of sprinklers under test . 6
7.3 Rotation speed uniformity test . 6
7.4 Flow rate uniformity test . 6
7.5 Distribution characteristics test . 7
7.6 Radius of throw test. 7
7.7 Trajectory height test . 7
7.8 Flow rate as a function of inlet pressure test . 7
7.9 Range of working pressure test . 7
8 Durability tests . 7
9 Identification and marking. 7
9.1 Sprinklers . 7
9.2 Nozzles . 7
10 Data to be supplied by the manufacturer . 8
10.1 General data . 8
10.2 Operating and performance data . 8
Annex A (informative) Drop size test . 9
© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 15886-2:2021(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 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 18, Irrigation and drainage equipment and systems.
This first edition of ISO 15886-2 cancels and replaces ISO 7749-1:1995, which has been technically
revised.
The main changes compared to the previous are as follows:
— the definitions have been updated;
— the sampling and acceptance tests have been deleted;
— references to ISO 7749-2 have been deleted;
— the distribution tests have been modified and developed in ISO 15886-3;
— a new Annex A "Drop size test" has been added.
A list of all parts in the ISO 15886 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 2021 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 15886-2:2021(E)
Agricultural irrigation equipment — Sprinklers —
Part 2:
Design and operation requirements
1 Scope
This document specifies the design and operational requirements of irrigation sprinklers and their test
methods.
The term sprinkler is used in this document in a broad generic sense and it means to cover a wide
variety of products as classified by ISO 15886-1. This document applies to rotating sprinklers.
This document is applicable to sprinklers intended for installation on a pipe lateral and for operation
with irrigation water.
2 Normative reference
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 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation
ISO 15886-1, Agricultural irrigation equipment — Sprinklers — Part 1: Definition of terms and classification
ISO 15886-3, Agricultural irrigation equipment — Sprinklers — Part 3: Characterization of distribution
and test methods
ISO 15886-4, Irrigation equipment — Irrigation sprinklers — Part 4: Test methods for durability
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15886-1, ISO 15886-3 and the
following 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 http:// www .electropedia .org/
3.1
ambient temperature
temperature of the air surrounding a sprinkler (3.3)
3.2
clean water
water processed, if necessary, so as to contain suspended particles no larger than 74 μm (200 mesh
equivalent) and to contain no dissolved chemicals known to have short-term effects on the sprinkler
materials
© ISO 2021 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 15886-2:2021(E)
3.3
sprinkler
water distribution device of a variety of sizes and types
EXAMPLE Impact sprinklers, fixed-nozzle sprinklers, irrigation guns.
3.4
nozzle
aperture of a sprinkler through which water is discharged
3.5
regulated flow sprinkler
sprinkler (3.3) that maintains a relatively constant flow rate (3.6) at varying water pressures at the
sprinkler inlet within the limits specified by the manufacturer
3.6
flow rate
volume of water flowing through a device per unit time
3.7
nominal flow rate
volume of water discharged per unit of time from a sprinkler (3.3) under test pressure (3.14)
3.8
inlet connection size
numerical designation used to characterize the sprinkler (3.3) which is identical to the size of the
connection to the irrigation pipe
3.9
distribution curve
graphical plot of effective application rate (3.12) as a function of distance from a sprinkler (3.3) along a
specified radius
3.10
irrigation lateral
branch supply line in an irrigation system on which distribution devices are mounted directly or by
means of fittings, risers or tubes
3.11
sprinkler spacing
conventional designation including the distance between the sprinklers (3.3) along an irrigation lateral
(3.11) and the distance between consecutive irrigation laterals
3.12
effective application rate
application rate equal to or exceeding 0.26 mm/h for sprinklers (3.3) with flow rates (3.6) exceeding
120 l/h and 0,13 mm/h for sprinklers with flow rates equal to or less than 120 l/h
3.13
range of working pressure
pressures between the minimum working pressure and the maximum working pressure
3.14
test pressure
P
n
pressure at the inlet of a sprinkler (3.3) declared by the manufacturer as the pressure to be used for test
purposes
2 © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 15886-2:2021(E)
3.15
trajectory angle
angle above the horizontal plane of the water stream discharged from a sprinkler nozzle operating at
test pressure (3.14)
4 General requirements
4.1 Materials
Sprinklers shall be made of metal or plastics. Metal sprinklers shall be made from a copper alloy or
from other materials whose mechanical properties and resistance to corrosion are similar to those of
copper alloys.
Plastics parts of the sprinkler which conduct water and which are exposed to sunlight shall be opaque
and shall contain an additive to protect against UV radiat
...
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 15886-2
ISO/TC 23/SC 18
Agricultural irrigation equipment —
Secretariat: SII
Sprinklers —
Voting begins on:
2021-03-12
Part 2:
Voting terminates on:
Design and operation requirements
2021-05-07
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 15886-2:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2021
---------------------- Page: 1 ----------------------
ISO/FDIS 15886-2:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 15886-2:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative reference . 1
3 Terms and definitions . 1
4 General requirements . 3
4.1 Materials . 3
4.2 Manufacture and installation . 3
4.3 Connections . 3
4.4 Performance requirements . 3
5 General test conditions . 4
5.1 Accuracy of measuring devices . 4
5.2 Test pressure. 4
5.3 Test liquid . 4
5.4 Atmospheric conditions . 4
6 Strength tests . 4
6.1 Construction and parts test. 4
6.2 Resistance of threaded connections test . 5
6.2.1 Threaded connections to riser . 5
6.2.2 Nozzle threads intended for threaded connection . 5
6.3 Resistance to hydrostatic pressure at ambient temperature test . 5
6.3.1 General. 5
6.3.2 Metal sprinklers . . 5
6.3.3 Plastics sprinklers. 5
6.4 Resistance to hydrostatic pressure at high temperature test . 5
6.5 Watertightness test . 6
7 Operating tests . 6
7.1 General . 6
7.2 Installation of sprinklers under test . 6
7.3 Rotation speed uniformity test . 6
7.4 Flow rate uniformity test . 6
7.5 Distribution characteristics test . 7
7.6 Radius of throw test. 7
7.7 Trajectory height test . 7
7.8 Flow rate as a function of inlet pressure test . 7
7.9 Range of working pressure test . 7
8 Durability tests . 7
9 Identification and marking. 7
9.1 Sprinklers . 7
9.2 Nozzles . 7
10 Data to be supplied by the manufacturer . 8
10.1 General data . 8
10.2 Operating and performance data . 8
Annex A (informative) Drop size test . 9
© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 15886-2:2021(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 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 18, Irrigation and drainage equipment and systems.
This first edition of ISO 15886-2 cancels and replaces ISO 7749-1:1995, which has been technically
revised.
The main changes compared to the previous are as follows:
— the definitions have been updated;
— the sampling and acceptance tests have been deleted;
— references to ISO 7749-2 have been deleted;
— the distribution tests have been modified and developed in ISO 15886-3;
— a new Annex A "Drop size test" has been added.
A list of all parts in the ISO 15886 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 2021 – All rights reserved
---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 15886-2:2021(E)
Agricultural irrigation equipment — Sprinklers —
Part 2:
Design and operation requirements
1 Scope
This document specifies the design and operational requirements of irrigation sprinklers and their test
methods.
The term sprinkler is used in this document in a broad generic sense and it means to cover a wide
variety of products as classified by ISO 15886-1. This document applies to rotating sprinklers.
This document is applicable to sprinklers intended for installation on a pipe lateral and for operation
with irrigation water.
2 Normative reference
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 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation
ISO 15886-1, Agricultural irrigation equipment — Sprinklers — Part 1: Definition of terms and classification
ISO 15886-3, Agricultural irrigation equipment — Sprinklers — Part 3: Characterization of distribution
and test methods
ISO 15886-4, Irrigation equipment — Irrigation sprinklers — Part 4: Test methods for durability
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15886-1, ISO 15886-3 and the
following 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 http:// www .electropedia .org/
3.1
ambient temperature
temperature of the air surrounding a sprinkler (3.3)
3.2
clean water
water processed, if necessary, so as to contain suspended particles no larger than 74 μm (200 mesh
equivalent) and to contain no dissolved chemicals known to have short-term effects on the sprinkler
materials
© ISO 2021 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO/FDIS 15886-2:2021(E)
3.3
sprinkler
water distribution device of a variety of sizes and types
EXAMPLE Impact sprinklers, fixed-nozzle sprinklers, irrigation guns.
3.4
nozzle
aperture of a sprinkler through which water is discharged
3.5
regulated flow sprinkler
sprinkler (3.3) that maintains a relatively constant flow rate (3.6) at varying water pressures at the
sprinkler inlet within the limits specified by the manufacturer
3.6
flow rate
volume of water flowing through a device per unit time
3.7
nominal flow rate
volume of water discharged per unit of time from a sprinkler (3.3) under test pressure (3.14)
3.8
inlet connection size
numerical designation used to characterize the sprinkler (3.3) which is identical to the size of the
connection to the irrigation pipe
3.9
distribution curve
graphical plot of effective application rate (3.12) as a function of distance from a sprinkler (3.3) along a
specified radius
3.10
irrigation lateral
branch supply line in an irrigation system on which distribution devices are mounted directly or by
means of fittings, risers or tubes
3.11
sprinkler spacing
conventional designation including the distance between the sprinklers (3.3) along an irrigation lateral
(3.11) and the distance between consecutive irrigation laterals
3.12
effective application rate
application rate equal to or exceeding 0.26 mm/h for sprinklers (3.3) with flow rates (3.6) exceeding
120 l/h and 0,13 mm/h for sprinklers with flow rates equal to or less than 120 l/h
3.13
range of working pressure
pressures between the minimum working pressure and the maximum working pressure
3.14
test pressure
P
n
pressure at the inlet of a sprinkler (3.3) declared by the manufacturer as the pressure to be used for test
purposes
2 © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/FDIS 15886-2:2021(E)
3.15
trajectory angle
angle above the horizontal plane of the water stream discharged from a sprinkler nozzle operating at
test pressure (3.14)
4 General requirements
4.1 Materials
Sprinklers shall be made of metal or plastics. Metal sprinklers shall be made from a copper alloy or
from other materials whose mechanica
...
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