ISO 24120-2:2023

Agricultural irrigation equipment — Guideline on the implementation of pressurized irrigation systems — Part 2: Drip irrigation

This document provides a guideline for the implementation of pressurized drip irrigation systems. It is applicable to both small-scale family agriculture and large-scale commercial agriculture, in open fields or within enclosed growing structures (e.g. greenhouse, net house). This document is intended for the use of agriculture ministries, agronomists, irrigation planners, farmers and other end-users.

Matériel agricole d'irrigation — Lignes directrices relatives à la mise en œuvre des systèmes d'irrigation sous pression — Partie 2: Irrigation goutte à goutte

General Information

• Status: Published
• Publication Date: 22-Jan-2023
• ICS: 65.060.35 - Irrigation and drainage equipment
• Technical Committee: ISO/TC 23/SC 18 - Irrigation and drainage equipment and systems
• Drafting Committee: ISO/TC 23/SC 18 - Irrigation and drainage equipment and systems
• Current Stage: 6060 - International Standard published
• Start Date: 23-Jan-2023
• Due Date: 02-Feb-2024
• Completion Date: 23-Jan-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 24120-2
First edition
2023-01
Agricultural irrigation equipment —
Guideline on the implementation of
pressurized irrigation systems —
Part 2:
Drip irrigation
Matériel agricole d'irrigation — Lignes directrices relatives à la mise
en œuvre des systèmes d'irrigation sous pression —
Partie 2: Irrigation goutte à goutte
Reference number
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principles of drip irrigation .2
4.1 General . 2
4.2 Water sources . 2
4.3 Water distribution network . . 3
4.3.1 Main line, sub-main, distribution pipes . 3
4.3.2 Drip irrigation laterals (dripper lines) . 4
4.3.3 Weather conditions . 4
5 Drippers classification . 4
5.1 General . 4
5.2 Unregulated drippers . 4
5.3 Regulated drippers . 5
5.3.1 General . 5
5.3.2 Regulated drippers for particular applications . 5
6 Drip irrigation safety . 6
7 Control head . 6
7.1 General . 6
7.2 Water meters . 7
7.3 Valves . 8
7.3.1 General . 8
7.3.2 Types of valves used in a drip irrigation system . 8
8 Filtration systems .10
9 Design .10
9.1 General . 10
9.2 Design principles . 10
9.3 Design of water source . 10
9.3.1 Design of surface water sources . 10
9.3.2 Design factors . 10
9.3.3 Changes in water quality . 11
9.3.4 Treated wastewater (TWW) . 11
9.3.5 Parameters to consider before initiating design . 11
9.3.6 Pumping from rivers . 11
9.3.7 Pumping from canals . 11
9.3.8 Factors affecting the quality of surface water sources . 11
9.3.9 Fish in reservoirs .12
9.4 Network design in irrigation systems .12
9.5 Velocity . 12
9.6 Location of head system . .12
9.7 Air valves and vacuum valves .12
9.8 Filtration method .12
9.9 Type of main line and relevant equipment .12
9.10 Irrigation method .13
9.11 Dripper flow rate . 13
9.12 Dripper line length . 13
9.12.1 Potable water . 13
9.12.2 Wastewater .13
9.13 Main line, secondary distribution pipeline and joints. 13
iii
10 Monitoring .13
10.1 General .13
10.2 Crops data . 14
10.3 Soil moisture monitoring . 14
10.4 Water monitoring . 14
10.5 Weather station . 14
11 Chemical injection system design .14
11.1 General . 14
11.2 Fertigation . 14
11.3 Chemigation . 15
11.4 Dosing unit . 15
11.5 Benefits of fertigation and/or chemigation . 15
11.6 Chemical application units . . .15
11.6.1 General .15
11.6.2 Fertilizer tank . 15
11.6.3 Hydraulic fertilizer pump . 15
11.6.4 Venturi injector . .15
11.6.5 Electric injection pump . 15
11.6.6 Hydraulic fertilizer injector . 15
12 Pump station .
...