ISO 13967-1998 热塑性塑料管件环刚度的测定

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【英文标准名称】:Thermoplasticsfittings-Determinationofringstiffness
【原文标准名称】:热塑性塑料管件环刚度的测定
【标准号】:ISO13967-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-07
【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/TC138
【标准类型】:()
【标准水平】:()
【中文主题词】:热塑性聚合物;硬挺度;塑料管;管道配件;定义;定义;试验
【英文主题词】:Definitions;Pipefittings;Plasticpipes;Stiffness;Testing;Thermoplasticpolymers
【摘要】:ThisInternationalStandardspecifiesamethodofdeterminingtheringstiffnessofbendsandbranchesmadefromthermoplasticmaterialandforusewithplasticspipeshavingacircularcross-section.Themethodcanbeusedtodeterminethestiffnessofbends,equalbranchesandunequalbranches,providedthatthefittingallowsaringdeflectionofatleast4%.Ifafittinghasthesamewallthickness,wallconstruction,materialanddiameterasapipebeingtested,then,becauseofitsgeometry,itsstiffnesswillbeequaltoorgreaterthanthatofthepipetested.Inthiscase,thefittingcanbeclassifiedashavingthesamestiffnessclassasthepipe,withouttesting.Anyunequalbranchmaybeexpectedtohaveatleastthesamestiffnessasanequalbranch,providedthatithasthesamemaindiameter,wallconstructionandmaterialastheequalbranch.NOTE—Theresultofthetestreflectstheresistancethefittinghasagainstdeflectionwheninstalled.AdviceonthesignificanceofthetestresultisgiveninannexA.
【中国标准分类号】:G31
【国际标准分类号】:23_040_45
【页数】:15P.;A4
【正文语种】:英语