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【英文标准名称】:Agriculturalirrigationequipment-Pressurelossesinirrigationvalves-Testmethod
【原文标准名称】:农业灌溉设备.灌溉阀中的压力损失.试验方法
【标准号】:ISO9644-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-07-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC23
【标准类型】:()
【标准水平】:()
【中文主题词】:农用设备;农业;定义;灌溉;灌溉工程;压力降;压力试验;试验设备;测试;阀门
【英文主题词】:Agriculturalequipment;Agriculture;Definition;Definitions;Irrigation;Irrigationworks;Pressuredrops;Pressuretests;Testequipment;Testing;Valves
【摘要】:ThisInternationalStandardspecifiesatestmethodfordeterminingthepressurelossinagriculturalirrigationvalvesundersteady-stateconditionswhenwaterflowsthroughthem.Thescopeandaccuracyofthevalveperformancespecificationspresentedwillassistagriculturalirrigationsystemdesignersincomparingpressurelossesthroughvarioustypesofvalves.Themeasurementofpressurelossesprovidesameansfordeterminingtherelationshipbetweenpressurelossandflowratethroughthevalve.ThisInternationalStandardalsodescribesthemethodofreportingpertinenttestdata.Noattemptismadetodefineproductuse,designorapplications.Thetestmethodissuitableforvalveswithequalinletandoutletnominalsizes.NOTEUnlessotherwisespecified,theequationsareexpressedintheSIunitsrecommendedbyISO1000.
【中国标准分类号】:B91
【国际标准分类号】:65_060_35
【页数】:16P.;A4
【正文语种】:英语