20/30393794 DC - BS ISO 15886-3. Agricultural irrigation equipment. Sprinklers. Part 3. Characterization of distribution and test methods

20/30393794 DC

BS ISO 15886-3. Agricultural irrigation equipment. Sprinklers. Part 3. Characterization of distribution and test methods

Status : Current, Draft for public comment   Published : June 2020

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This part of ISO 15886 specifies the conditions and methods used for testing and characterizing the water distribution patterns of irrigation sprinklers. The term sprinkler is used in this standard 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 those three performance measurements are required to verify the design objectives as defined by the manufacturer.

This part of ISO 15886 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.

This part of ISO 15886 does not address the specific performance testing required for sprinklers intended for use in frost protection.

This part of ISO 15886 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 this part of ISO 15886 for evaluating irrigation coverage, all sprinklers must be identical and arranged in a fixed repeating geometric pattern. This part of the standard does not apply to moving systems.

This part of ISO 15886 applies to part-circle sprinklers provided that the testing agency can satisfy questions of potential anomalies in performance parameters.

Annex A addresses the procedures for the characterization of sprinkler pattern uniformity. Annex B addresses testing part-circle sprinklers.




Standard Number20/30393794 DC
TitleBS ISO 15886-3. Agricultural irrigation equipment. Sprinklers. Part 3. Characterization of distribution and test methods
StatusCurrent, Draft for public comment
Publication Date29 June 2020
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 9644
International RelationshipsISO/DIS 15886-3
Draft Expiry Date22 August 2020
DescriptorsWater retention and flow works, Spraying equipment (agriculture), Radius, Height, Spraying, Watering equipment, Statistical distribution, Irrigation works, Test methods, Agricultural equipment, Homogeneity
ICS65.060.35
Title in FrenchMatériel agricole d'irrigation — Asperseurs — Partie 3: Caractérisation de la distribution et méthodes d'essai Partie 3: Caractérisation de la distribution et méthodes d'essai
CommitteeAGE/30
PublisherBSI
FormatA4
DeliveryYes
Pages26
File Size0.9902 MB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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