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【英文标准名称】:Metallicmaterials-Tensiletestinginliquidhelium
【原文标准名称】:金属材料.液态氦中的抗拉试验
【标准号】:ISO19819-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-08
【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/TC164
【标准类型】:()
【标准水平】:()
【中文主题词】:机械性能;氦;金属材料;低温试验;合金;定义;机械试验;冷凝;绝热的;低温;金属;抗拉试验
【英文主题词】:Adiabatic;Alloys;Cryogenic;Definitions;Helium;Lowtemperatures;Low-temperaturetesting;Mechanicalproperties;Mechanicaltesting;Metallicmaterials;Metals;Tensiletesting
【摘要】:ThisInternationalStandardspecifiesthemethodoftensiletestingofmetallicmaterialsinliquidhelium(boilingpointat-269℃or4,2K,designatedas4K)anddefinesthemechanicalpropertiesthatcanbedetermined.ThisInternationalStandardmayalsoapplytotensiletestingatcryogenictemperatures(lessthan-196℃or77K),whichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheatingandstrainrateeffects.Toconductatensiletestat4KinaccordancewiththisInternationalStandard,thespecimeninstalledinacryostatisfullysubmergedinliquidhelium(He)andtestedusingdisplacementcontrolatanominalstrainrateof10sorless.Testsusingforcecontrolorhigherstrainratesarenotconsidered.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforConcreteSewerManholesbytheNegativeAirPressure(Vacuum)TestPriortoBackfill
【原文标准名称】:回填之前利用负压(真空)试验的混凝土污水管检查孔的标准试验方法
【标准号】:ASTMC1244-2005ae1
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C13.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;检查孔;污水处理工厂;混凝土构件
【英文主题词】:acceptancecriteria;concrete;manholesections;testmethod;vacuumtest
【摘要】:Thisisnotaroutinetest.Thevaluesrecordedareapplicableonlytothemanholebeingtestedandatthetimeoftesting.1.1Thistestmethodcoversproceduresfortestingprecastconcretemanholesectionswhenusingthevacuumtestmethodtodemonstratetheintegrityoftheinstalledmaterialsandtheconstructionprocedures.Thistestmethodisusedfortestingconcretemanholesectionsutilizingmortar,mastic,orgasketedjoints.1.2Thistestmethodisintendedtobeusedasapreliminarytesttoenabletheinstallertodemonstratetheconditionoftheconcretemanholespriortobackfill.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4ThistestmethodisthecompaniontometricTestMethodC1244M;therefore,noSIequivalentsareshowninthistestmethod.Note18212;Vacuumtestcriteriapresentedinthistestmethodaresimilartothoseingeneraluse.Thetestandcriteriahavebeenwidelyandsuccessfullyusedintestingmanholes.Note28212;Theuserofthistestmethodisadvisedthatnocorrelationhasbeenfoundbetweenvacuum(air)andhydrostatictests.
【中国标准分类号】:P41
【国际标准分类号】:23_040_50
【页数】:4P.;A4
【正文语种】: