ISO/TC 23/SC 18/WG 3 - Irrigation sprinklers

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.

This document specifies the conditions and methods used for testing and characterizing the water distribution patterns of irrigation sprinklers. The term sprinkler is used in this document in a broad generic sense and is meant to cover a wide variety of products. The specific performance measurements addressed include distribution uniformity, wetted radius, and water jet trajectory height. This document applies to all irrigation sprinkler classifications for which those three performance measurements are required to verify the design objectives as defined by the manufacturer. This document deals both with indoor and outdoor tests and with radial and full grid tests. It is organized so as to deal with conditions common to all tests first and then with conditions unique to indoor testing only and finally with conditions unique to outdoor testing only. For any given sprinkler, a wide range of nozzle configurations, operating conditions, and adjustments generate at least a theoretical need for a correspondingly large number of tests. Testing agencies and manufacturers can use interpolation techniques to reduce the number of actual test runs provided accuracy standards are still being met. This document does not address the specific performance testing required for sprinklers intended for use in frost protection. This document does not address the topic of drop spectrum measurement and characterization and the related questions of soil compaction, spray drift, evaporative losses, etc., all of which can be considerations in the design of sprinkler irrigation systems. This document is used for evaluating irrigation coverage of sprinklers that are identical and arranged in a fixed repeating geometric pattern. This document does not apply to moving systems. This document applies to part-circle sprinklers provided that the testing agency can satisfy questions of potential anomalies in performance parameters. NOTE Annex A addresses the procedures for the characterization of sprinkler pattern uniformity. Annex B addresses testing part-circle sprinklers.

This document specifies the conditions and methods for testing the durability of rotating sprinklers for irrigation. The term sprinkler is used here in a broad generic sense and is meant to cover a wide variety of products as classified in ISO 15886-1, which applies to all irrigation sprinkler classifications having both static parts and moving parts during operation, as defined by the manufacturer. For any given sprinkler, a wide range of nozzle configurations, operating conditions, and adjustments generates at least a theoretical need for a correspondingly large number of tests. Testing agencies and manufacturers can use interpolation techniques to reduce the number of actual test runs, provided accuracy standards are still being met.

ISO 15886-3:2012 specifies the conditions and methods used for testing and characterizing the water distribution patterns of irrigation sprinklers. The term sprinkler is used in a broad generic sense and is meant to cover a wide variety of products as classified by ISO 15886-1. The specific performance measurements addressed include distribution uniformity, wetted radius, and water jet trajectory height. This standard applies to all irrigation sprinkler classifications for which these three performance measurements are required to verify the design objectives as defined by the manufacturer. ISO 15886-3:2012 deals both with indoor and outdoor tests and with radial and full grid tests. It is organized so as to deal with conditions common to all tests first and then with conditions unique to indoor testing only and finally with conditions unique to outdoor testing only. For any given sprinkler, a wide range of nozzle configurations, operating conditions, and adjustments generate at least a theoretical need for a correspondingly large number of tests. Testing agencies and manufacturers may use interpolation techniques to reduce the number of actual test runs provided accuracy standards are still being met. ISO 15886-3:2012 does not address the specific performance testing required for sprinklers intended for use in frost protection. It also does not address the topic of drop spectrum measurement and characterization and the related questions of soil compaction, spray drift, evaporative losses, etc., all of which can be considerations in the design of sprinkler irrigation systems. To apply ISO 15886-3:2012 for evaluating irrigation coverage, all sprinklers must be identical and arranged in a fixed repeating geometric pattern. ISO 15886-3:2012 does not apply to moving systems. ISO 15886-3:2012 applies to part-circle sprinklers provided that the testing agency can satisfy questions of potential anomalies in performance parameters. One annex addresses the procedures for the characterization of sprinkler pattern uniformity; another addresses testing part-circle sprinklers.

ISO 15886-1:2012 defines terms related to irrigation sprinklers and specifies the classification of sprinklers according to the following categories: physical factors; characteristics of the water spray; the mechanism for operation and water distribution; the mechanism for sealing; the intended use; additional functions incorporated into the sprinkler. The scope is intentionally broad to cover the widest possible range of sprinkler construction, performance, and intended-use alternatives.

ISO 15886-1:2004 defines terms used in relation to sprinklers intended for agricultural irrigation and provides a means of classifying those sprinklers according to physical factors, characteristics of water spray, mechanism for operation and water distribution, approach to sealing, intended use, and additional functions incorporated into the sprinkler.

ISO 15886-3:2004 specifies the conditions and methods used for testing and characterizing the water distribution patterns of sprinklers intended for agricultural irrigation. It deals both with indoor and outdoor, radial and full grid, tests and is organized so as to deal first with conditions common to all the tests and then with those unique to indoor and outdoor testing, respectively.