【英文标准名称】:StandardTerminologyRelatingtoEmergencyMedicalServices
【原文标准名称】:紧急医疗服务相关标准术语
【标准号】:ASTMF1177-2002(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:F30.06
【标准类型】:(Terminology)
【标准水平】:()
【中文主题词】:
【英文主题词】:Emergencymedicalservices(EMS);Terminology--medical/surgicalsystems/applications
【摘要】:1.1ThisterminologycoversstandarddefinitionsoftermswhichapplytoallF30standards,butwhicharemoreprecisethancommonusage.
【中国标准分类号】:C04
【国际标准分类号】:11_160
【页数】:3P.;A4
【正文语种】:英语
基本信息
标准名称: | 钢件的淬火与回火 |
英文名称: | Quenching and tempering of steel parts |
中标分类: |
机械 >>
加工工艺 >>
热处理 |
ICS分类: |
机械制造 >>
表面处理和涂覆
|
替代情况: | 替代JB 3877-1985;被GB/T 16924-2008代替 |
发布部门: | 国家技术监督局 |
发布日期: | 1997-07-02 |
实施日期: | 1998-02-01 |
首发日期: | 1997-07-25 |
作废日期: | 2009-01-01 |
主管部门: | 国家标准化管理委员会 |
提出单位: | 中华人民共和国机械工业部 |
归口单位: | 全国热处理标准化技术委员会 |
起草单位: | 机械工业部北京机电研究所 |
起草人: | 刘迨、贾洪艳、叶孝思、安运铮、程宗祥、袁家栋 |
出版社: | 中国标准出版社 |
出版日期: | 1998-02-01 |
页数: | 平装16开, 页数:14, 字数:23千字 |
适用范围
本标准规定了炉中加热的钢件淬火与回火技术要求及方法。
前言
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目录
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引用标准
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所属分类: 机械 加工工艺 热处理 机械制造 表面处理和涂覆
【英文标准名称】:StandardTestMethodforAsbestosStrengthUnits
【原文标准名称】:石棉强度单位的标准试验方法
【标准号】:ASTMD3880-1990(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1990
【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】:C17.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石棉;材料强度;施工材料;石棉纤维;塑料;试验;建筑;材料
【英文主题词】:asbestos;asbestos-cement;determination;evaluation;pointvalue;reinforcementpotential;strength;strengthunit
【摘要】:Thistestmethodfacilitatesthecomparisonofdifferenttypesandgradesofchrysotileasbestosbythepropertymostpertinenttoitsuseinasbestos-cement,namely,thestrengthorreinforcingvalueitimpartstotheproduct.Whilesimilarcomparativeresultscouldbeobtainedonanygivenproductionequipment,thismethodallowsthetestingofsmallsamples,avoidscostlyinterruptionsinproductionfornumeroustrialruns,andallowstestvaluestobeobtainedbyasinglestandardmethodsothatresultscanbecomparedamongdifferentlocations.StrengthUnit(SU)valueofafiberblendusedinasbestos-cementproductsmaybeestimatedbytakingtheproportionateSUvalueofeachcomponentofthefiberblend.Ifthefiberblendisformulatedwiththeaimtooptimizeanotherfiberpropertysuchasfilterability,theSUcalculationwillassurethattheblendwillnotfallbelowanacceptablestrengthlevel.Thistestmethodisrestrictedtogradesofasbestosusedinasbestos-cementproducts.Verylong(Group3)fibersaredifficulttoevaluatebythismethodbecausethetestspecimensproducedmaynotbesufficientlyhomogeneous.Similarly,veryshort(Group7)gradesmaynotberetainedsatisfactorilyinthemoldduringthepressingoftestspecimensormaynotprovidesufficientstrengthtomeetthetestrequirements.Note18212;ThetermGroup3or7referstothestandarddesignationforchrysotileasbestosgradesestablishedbytheQuebecAsbestosMiningAssociation,See2.2.Becauseofcertaindifferencesbetweenthismethodandthemanyvariationsinplantproductionprocedurecommonlyusedinasbestos-cementmanufacture,itisemphasizedthatthestrengthvaluesobtainedbythisstandardizedprocedurewillnotnecessarilygiveexactlythesamestrengthvaluesasobtainedatanyonespecificmanufacturingplant.1.1Thistestmethodgivesaprocedurefortheevaluationofthestrength-givingpropertiesofasbestosfibersusedtoreinforceasbestos-cementproducts.1.2Thepurposeofthistestmethodistodeterminethenumberofstrengthunitsthatmaybeassignedtothesampletested.1.3Asbestosfiberpossessestheabilitytoimpartstrengthtoanasbestos-cementproduct.Everyfibergrademayberegardedaspossessingacertainquantityofstrength-givingunits.Thequantityoffiberrequiredinanasbestos-cementcompositionvariesinverselywiththenumberofstrengthunitsitpossesses.Forexample,ifanamount,designatedbyX,ofafiberpossessing100strengthunitsproducesaproductofagivenstrength,2Xwouldberequiredtoproduceaproductofequivalentstrengthfromfiberpossessingonly50strengthunits.1.4Thefollowingdefinitionisthebasisforthestrengthunittest:Anasbestosfiberthatgivesthestandardstrengthatthestandarddensitywhenusedas10%ofthefurnishisdefinedashaving100strengthunits.Therefore,byknowingthepercentfiberrequiredinthemixtogivestandardstrengthatthestandarddensity,itispossibletocalculatethestrengthunitsofasampleofasbestos.1.5Thisprocedureisintendedprimarilyforchrysotileasbestos;ithasnotbeenverifiedwhetherornotitisapplicabletoothertypes.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Warning-Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinformationonthesafeuseofchrysoltileasbestos,referto"SafeUseofChrysot......
【中国标准分类号】:Q61
【国际标准分类号】:91_100_40
【页数】:23P.;A4
【正文语种】: