International Organization for Standardization (ISO) Irrigation Standards

Current Listing of International Irrigation Standards (September 2000)

The following listing of irrigation standards are as developed and promulgated by the International Organization for Standardization (ISO). ISO is an international agency for standardization, headquartered in Geneva, Switzerland. Members of ISO are the national standards bodies of about 90 countries. The United States representative is the American National Standards Institute (ANSI). The objectives of ISO are to advance worldwide standardization; to facilitate international exchange of goods and services; and to promote cooperation in intellectual, scientific, technological, and economic activity.

ISO is comprised of more than 2,000 technical committees, subcommittees, and working groups. Individual countries participate in the development of these standards as members of technical advisory groups with related subcommittees. In this case, the designated subcommittee is noted as ISO/TC23/SC18 (irrigation and drainage standards). Recently the countries most active in SC18 have been Israel, France, the United States, Canada, Spain, and Italy. Other countries that have participated in the past are Belgium, the Peoples Republic of China, Denmark, Germany, Hungary, and the United Kingdom. The secretariat and chair of SC18 are held by Israel.

The Irrigation Association (IA) is officially accredited by ANSI to review proposed standards and advise ANSI on the appropriate voting action. The Center for Irrigation Technology (CIT) in turn is contracted to the IA to handle all administrative matters and represent the IA on SC18.

ISO 7714:1995 AGRICULTURAL IRRIGATION EQUIPMENT - VOLUMETRIC VALVES
General Requirements and Test Methods
Scope: Volumetric valves capable of delivering automatically preset quantities of water. Valves actuated by pipeline pressure and flow. No external source of energy required.

ISO 7749-1:1995 AGRICULTURAL IRRIGATION EQUIPMENT - ROTATING SPRINKLERS
Part 1: Design and Operational Requirements
Scope: Applies to sprinklers intended for assembly in pipeline networks for irrigation. Sprinklers operated at pressures recommended by the manufacturer.

ISO 7749-2:1990 IRRIGATION EQUIPMENT - ROTATING SPRINKLERS
Part 2: Uniformity of Distribution and Test Methods
Scope: Applies only to stationary rotating sprinklers intended for irrigation and operated at pressures recommended by the manufacturer. Specifies conditions and methods used for testing the uniformity of distribution.

ISO 8026:1995 AGRICULTURAL IRRIGATION EQUIPMENT - SPRAYERS
General Requirements and Test Methods
Scope: Applies only to devices which spray water as fine jets or fan shaped without rotational movement of sprayer parts. Sprayers intended for assembly in pipeline networks.

ISO 8026:2000 AMENDMENT 1: A Number of changes in terms definitions.
A replacement for Figure 6.

ISO/TR 8059:1986 IRRIGATION EQUIPMENT - AUTOMATIC IRRIGATION SYSTEMS
Hydraulic Control
Scope: Defines and classifies automatic irrigation systems based on hydraulic devices using only the energy that can be obtained from the water in the system.

ISO 8224-1:1985 TRAVELLER IRRIGATION MACHINES -
Part 1: Laboratory and Field Test Methods
Scope: Specifies laboratory and field test methods for traveller irrigation machines intended for spreading of liquids such as irrigation water, wastewater, liquid manure and sludge. Such machines normally use semi-rigid plastic pipe capable of being stored on a reel under pressure.

ISO 8224-2:1991 TRAVELER IRRIGATION MACHINES -
Part 2: Softwall Hose and Couplings - Test Methods
Scope: Specifies test method for specific physical properties and accelerated duration tests. Refers to collapsible hose normally constructed with an inner and outer tube surrounding a load bearing textile reinforcement. Hose to be used on mobile hose dragging, laying, or coiling irrigation machines or stationary hose-coiling machines.

ISO 9261:1991 AGRICULTURAL IRRIGATION EQUIPMENT - EMITTING-PIPE SYSTEMS -
Specification and Test Methods
Scope: Specifies mechanical and functional requirements, test methods, and installation and operational data to be supplied by the manufacturer. Applies to dripping and trickling pipe hose, or tubing where the emitting units form an integral part of the tubing. Does not apply to porous pipe.

ISO 9635:1990 IRRIGATION EQUIPMENT - HYDRAULICALLY OPERATED IRRIGATION VALVES
Scope: Specifies performance requirements, construction, and test methods. Applies to hydraulically operated valves of 15mm size or larger and normally operated full open or closed.

ISO 9644:1993 AGRICULTURAL IRRIGATION EQUIPMENT - PRESSURE LOSSES IN IRRIGATION
VALVES - Test Method
Scope: Specifies a test method to determine the pressure loss in valves under steady-state water flow conditions.

ISO 9644:1998 AMENDMENT 1: Modifications to subclause 5.1 and subclause 5.5

ISO 9911:1993 AGRICULTURAL IRRIGATION EQUIPMENT - MANUALLY OPERATED SMALL
PLASTIC VALVES
Scope: Specifies test methods and general construction requirements for manually operated small plastic valves (size 90mm diameter or less).

ISO 9912-2:1992 AGRICULTURAL IRRIGATION EQUIPMENT - FILTERS
Part 2: Strainer-Type Filters
Scope: Specifies test methods and general construction requirements for strainer-type filters. Does not cover filtration capability, efficiency, clogging tests, etc. Does not cover self-cleaning devices.

ISO 9912-3:1992 AGRICULTURAL IRRIGATION EQUIPMENT - FILTERS
Part 3: Automatic Self-Cleaning Strainer-Type Filters
Scope: Specifies test methods and general construction requirements for automatic self-cleaning strainer-type filters. Does not cover filtration capability, efficiency, capacity, or clogging rates.

ISO 9952:1993 AGRICULTURAL IRRIGATION EQUIPMENT - CHECK VALVES
Scope: Specifies the construction and performance requirements, and test methods for check valves. Covers possible corrosive effects of waters laden with fertilizers and chemicals.

ISO 10522:1992 AGRICULTURAL IRRIGATION EQUIPMENT - DIRECT-ACTING PRESSURE-
REGULATING VALVES
Scope: Specifies the construction and performance requirements, and test methods for direct-acting pressure-regulating valves. Covers possible corrosive effects of waters laden with fertilizers and chemicals. Note: Direct-acting pressure regulators utilize a calibrated spring to mechanically set the regulating orifice to a controlling position.

ISO/DIS 11419:1992 AGRICULTURAL IRRIGATION EQUIPMENT - FLOAT TYPE AIR RELEASE VALVES
Scope: Specifies the construction and performance requirements, and test methods for float-type air release valves. Covers possible corrosive effects of waters laden with fertilizers and chemicals. Covers vacuum relief and air release at both operating pressure (continuous acting) and during pipeline filling.
ISO 11545:1999 AGRICULTURAL IRRIGATION EQUIPMENT - CENTRE-PIVOT AND MOVING
LATERAL IRRIGATION MACHINES WITH SPRAYER OR SPRINKLER NOZZLES -
Determination of Uniformity of Water Distribution
Scope: Specifies a field method of measuring uniformity of water distribution from centre-pivots and moving lateral irrigation machines. Defines the method of characterizing the uniformity.
Note: This is a revision of first edition, ISO 11545:1995

ISO11678:1996 AGRICULTURAL IRRIGATION EQUIPMENT - ALUMINUM IRRIGATION TUBES
Scope: Specifies minimum required mechanical and chemical properties and test methods for aluminum irrigation tubes.

ISO/FDIS*11738:1999 AGRICULTURAL IRIGATION EQUIPMENT-CONTROL HEADS
Scope: This standard specifies requirements for the components and method of installation for pressurized systems. It is applicable to above-ground components only for sprinkler and micro-irrigation systems. It does not apply to special components required in freezing conditions and related to the injection of agricultural chemicals.

ISO12374:1995 AGRICULTURAL IRRIGATION - WIRING AND EQUIPMENT FOR ELECTRICALLY-
DRIVEN OR CONTROLLED IRRIGATION MACHINES
Scope: Provides detailed information for the application of electrical apparatus to electrically driven and controlled irrigation machines. Covers operating voltages from 30 to 600 volts.

ISO/ 13457:2000 AGRICULTURAL IRRIGATION EQUIPMENT-WATER-DRIVEN CHEMICAL INJECTOR
PUMPS
Scope: This standard specifies construction and operational requirements and test methods for water-powered chemical injector pumps. These pumps are used to inject chemicals into irrigation system pipelines at water temperatures up to 50° C (122° F). This standard is not applicable to backflow prevention devices or to Venturi-principle water-driven devices.

ISO/FDIS*13460:1998 PLASTIC SADDLE FITTINGS FOR PE IRRIGATION PIPE
Scope: Specifies the required mechanical and hydraulic properties and test methods for polyethylene plastic saddles used in above ground and buried applications conveying water at temperatures not exceeding 45° C (113.0° F).

*Final Draft International Standard

STANDARDS MAY BE ORDERED IN ELECTRONIC OR HARD COPY VERSIONS

ELECTRONIC COPIES MAY BE ORDERED FROM:

ANSI
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HARD (PAPER) COPIES MAY BE ORDERED FROM:

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CURRENT COMMITTEE ACTIVITIES TC 23/SC 18

Current committee activities include work on the following topics and standards:

1) Revision of ISO 9261, Emitting Pipe Systems-Specifications and Test Methods

2) New Standard on Graphic Symbols for Pressurized Irrigation System Design

3) New Standard on Differential Pressure Venturi Fertilizer Injectors

4) Development of standardized definitions suitable for general standards use

5) Comprehensive restructuring of existing standards (ISO 7749-1 and ISO 7749-2) related to sprinkler classification, design, operational requirements and distribution test methods

6) New standard on Safety Devices for Chemigation

For more information contact:

Standards Coordinator
Center for Irrigation Technology
5370 North Chestnut Avenue MS/ OF18
Fresno, California 93740-8021
Phone: (559) 278-2066
Fax: (559) 278-6033
E-mail: edward_norum@csufresno.edu