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JB/T 4067.1-1996 刻模铣床 精度

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基本信息
标准名称:刻模铣床 精度
中标分类: 机械 >> 金属切削机床 >> 钻、镗、铣床
替代情况:替代JB 4067-85;被JB/T 4067.1-2006代替
发布部门:北京铣床研究所
发布日期:1996-04-11
实施日期:1996-10-01
首发日期:1900-01-01
作废日期:2007-05-01
归口单位:北京铣床研究所
出版社:机械工业出版社
出版日期:1996-10-01
页数:13 页
批文号:机械科[1996]339号
适用范围

本标准规定了刻模铣床几何精度和工作精度的要求及检验方法。 本标准适用于缩放仪中心距为235~400mm的平面刻模铣床及缩放仪中心距为350~450mm的立体刻模铣床。

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所属分类: 机械 金属切削机床 钻 镗 铣床
基本信息
标准名称:特辅机武备机械加工工时定额 钻工
中标分类: 船舶 >> 船舶综合 >> 经济管理
ICS分类: 造船和海上建筑物 >> 船舶和海上建筑物综合 >> 造船和海上建筑通用标准
发布日期:1900-01-01
实施日期:1978-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:25页
适用范围

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所属分类: 船舶 船舶综合 经济管理 造船和海上建筑物 船舶和海上建筑物综合 造船和海上建筑通用标准
【英文标准名称】:StandardSpecificationforAir-FedProtectiveEnsembles
【原文标准名称】:自供气全套防护装备的标准规范
【标准号】:ASTMF2704-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:F23.30
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:air-fedprotectiveensemble;biologicalhazards;BiosafetyLevel4;chemicalhazards;protectiveensemble;radiologicalparticulatehazards;respiratoryprotectiveequipment
【摘要】:Aswithotherhazardousmaterialsprotectiveensembles,air-fedprotectiveensemblesincludeclothingandequipmentitemsneededfordermalandrespiratoryprotection,includingprotectivesuits,gloves,footwear,andeye/faceprotection.Unlikeotherprotectiveensembles,air-fedprotectiveensemblesdonotuseseparaterespiratoryprotectivedevicessuchasself-containedbreathingapparatus(SCBA)ornon-poweredair-purifyingrespirators(APR''s).Thosetypesofrespiratorsnormallyhaveatightfittingfacepiecethatprovidesinhalationhazardprotectionanddermalexposureprotectiontotheface,eyes,nose,andmouth.Air-fedprotectiveensemblesarewornwithouttheuseofaseparaterespirator.Theentiresuitservesastherespiratoryprotectivedeviceandalsoprovidesdermalexposureprotection.Thewearerbreathessuppliedairorfilteredairpumpedintotheprotectivesuit.Air-fedprotectiveensemblesareusedtoprotectworkersinanumberofapplications.Theseinclude,butarenotlimitedto:chemicalandpharmaceuticalmanufacturing,remediationofhazardousmaterialssites,useagainsthighlyinfectiousbiologicalagentsinBioSafetyLevel4laboratories,andforprotectionofworkersinvolvedinnuclearfacilities,whereitispossibleradioactiveparticleswillbeencountered.TherequirementsofthisspecificationhavebeenpartlybasedontheNFPA1991Standard,whichestablishescriteriaforvapor-protectiveensemblesusedinhazardousmaterialsemergencies.NFPA1991establishesrequirementsforaprotectiveensemblethatencapsulatesthewearerandthebreathingapparatus.Inthisspecification,abreathingapparatusisnotworninsidethesuit,butinsteadbreathingairisconnectedtothesuiteitherviaanexternalairlineorrespiratoryprotectiveequipmentthatisexternallyconnectedtothesuitwall.Extensivecriteriafortheintegrityoftheoverallensembleareappliedthroughdesignandperformancecriteria.Thisallowsfordifferentconfigurationsofaprotectiveensemblethatincorporatesahoodedvisor,protectivegloves,protectivefootwear,andtherespiratoryprotectiveequipment.Thequalificationoftherespiratoryprotectiveequipmentisaddressedbytheapplicablerequirementsforrespiratorsestablishedin42CFRPart84.Assuch,theentireair-fedensembleissubjecttocertificationbyNIOSHinadditiontomeetingtherequirementsinthisspecification.Thisspecificationestablishesclassificationsfortheprotectiveensemble.Theclassificationsincludeonethatisdeterminedbytheconfigurationoftheprotectiveensembleandonethatconcernstheuseoftheprotectiveensemble.Aprotectiveensemblecanbeclassifiedasax201C;AirlineProtectiveEnsemblex201D;orax201C;PAPR-BasedAir-FedProtectiveEnsemblex201D;.Undereachoftheseclassifications,protectiveensemblescanbefurtherclassifiedasx201C;LimitedUsex201D;andx201C;Multiple-Usex201D;.Theseclassificationsaccountfordifferencesintheconfigurationoftheairsupplyandmaterialstrengthanddurability.Theseclassificationsdonotaccountforthedecontaminationeffectivenessofmultipleuseensembles.Inrecognitionofthepotentialdiverseapplicationstowhichtheprotectiveensemblecanbeused,documentationrequirementsareprovidedformanufacturerstobaseclaimsforpermeationresistanceofensemblematerialsagainstspecificchemicalsorforclaimsofensemblematerialperformanceagainstbloodborne(orliquidborne)pathogens.Similarrequirementsareestablishedfortherespiratoryprotectiveequipment,whenthise......