MIL-STD-2000A, MILITARY STANDARD: STANDARD REQUIREMENTS FOR SOLDERED ELECTRICAL AND ELECTRONIC ASSEMBLIES (14 FEB 1991) [NO S/S DOCUMENT]., This standard establishes requirements for materials and procedures formaking soldered connections in electrical and electronic assemblies. Soldered connections forleads and wires inserted in holes, surface mounted to kinds, or attached to terminals shall be inaccordance with this standard. In addition, component mounting requirements and acceptancecriteria are provided to permit evaluation of complete assemblies.【英文标准名称】:StandardPracticeforDryPreparationofSoilSamplesforParticle-SizeAnalysisandDeterminationofSoilConstants
【原文标准名称】:土壤粒度分析试验方法
【标准号】:ASTMD421-1985(2007)
【标准状态】:现行
【国别】:
【发布日期】:1985
【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】:D18.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑;分析;土壤采样;天然石料;干燥;粒度测量;土壤
【英文主题词】:drypreparation;particle-sizeanalysis;soil
【摘要】:Thispracticecanbeusedtopreparesamplesforparticle-sizeandplasticitytestswhereitisdesiredtodeterminetestvaluesonair-driedsamples,orwhereitisknownthatairdryingdoesnothaveaneffectontestresultsrelativetosamplespreparedinaccordancewithPracticeD2217.1.1Thispracticecoversthedrypreparationofsoilsamplesasreceivedfromthefieldforparticle-sizeanalysisandthedeterminationofthesoilconstants.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B10
【国际标准分类号】:93_020
【页数】:2P.;A4
【正文语种】: