NF S54-003-1-2003 儿童用保育用品.婴幼儿用橡皮奶头.第1部分:一般安全要求和产品信息

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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


MIL-STD-2186A, MILITARY STANDARD: REAL-TIME OUTFITTING MANAGEMENT INFORMATION SYSTEM, GENERAL REQUIREMENTS FOR (04 JAN 1993) [SUPERSEDES DOD-STD-2186] [NO S/S DOCUMENT]., This standard describes the shipbuilding or overhauling contractor's functions, responsibilities, and requirements applicable to the Real-Time Outfitting Management Information System (ROMIS).