NF A51-112-1978 铜和铜合金制半成品.一般用铜镍轧制品
时间:2024-05-02 19:16:31 来源: 标准资料网 作者：标准资料网 阅读：9469
【英文标准名称】:SEMI-FINISHEDCOPPERANDCOPPERALLOYPRODUCTS.GENERALPURPOSEROLLEDCOPPER-NICKELPRODUCTS.
【原文标准名称】:铜和铜合金制半成品.一般用铜镍轧制品
【标准号】:NFA51-112-1978
【标准状态】:作废
【国别】:法国
【发布日期】:1978-09
【实施或试行日期】:1978-09-15
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_150_30
【页数】:8P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforParticleSizeRangeofPeatMaterialsforHorticulturalPurposes
【原文标准名称】:园艺用泥炭材料粒度范围的标准测试方法
【标准号】:ASTMD2977-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D18.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:施工材料;园艺;粒度;泥炭;建筑;土壤
【英文主题词】:particlesize;peat;sieving
【摘要】:Thistestmethodseparatespeatmaterialintoarbitraryfractionsbasedonparticlesize.Physicalseparationofpeatmaterialaccordingtoparticlesizeprovidesausefulindicatorofthepropertiesofapeatspecimensuchasporespace,decomposition,etc.Itprovidesameansofdeterminingtheamountofforeignmatternotinadividedstatesuchassticks,stones,andglass.Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/andthelike.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversmeasurementoftheweightpercentageoffractionsofapeatmaterialdefinedintermsofselectedrangesofscreensizes.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:19_120
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:Plainwashers-Normalseries-ProductgradeA
【原文标准名称】:平垫圈标准系列产品等级A级
【标准号】:ISO7089-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-06
【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/TC2
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;交货条件;特性;尺寸;公差(测量);名称与符号;垫圈;浅;可拆零件;产品等级
【英文主题词】:Deliveryconditions;Designations;Dimensions;Fasteners;Productgrades;Properties;Separatingparts;Shallow;Tolerances(measurement);Washers
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsofnormal-series,product-grade-Aplainwashersinthe200HVand300HVhardnessclassesandofnominalsizes(nominalthreaddiameters)rangingfrom1,6mmto64mminclusive.Washersofhardnessclass200HVaresuitablefor—hexagonboltsandscrewsofproductgradesAandBinpropertyclassesuptoandincluding8.8;—hexagonnutsofproductgradesAandBinpropertyclassesuptoandincluding8;—hexagonbolts,screwsandnutsofstainlesssteelofsimilarchemicalcomposition;—case-hardenedthreadrollingscrews.Washersofhardnessclass300HVaresuitablefor—hexagonboltsandscrewsofproductgradesAandBinpropertyclassesuptoandincluding10.9;—hexagonnutsofproductgradesAandBinpropertyclassesuptoandincluding10.IfdimensionsotherthanthoselistedinthisInternationalStandardarerequired,theyshouldbeselectedfromthosegiveninISO887.Whensoftmaterialpiecesareclamped,orlargeclearanceholesintheworkpieceareused,theusershouldcheckthetechnicalsuitabilityofthistypeofwasher.
【中国标准分类号】:J13
【国际标准分类号】:21_060_30
【页数】:5P;A4
【正文语种】:英语