DIN EN 50325-4-2003 基于ISO11898控制器装置接口的工业通信子系统.第4部分:CANopen

上一篇: DIN EN 61207-3 Berichtigung 1-2003 DINEN61207-3-2002技术勘误
下一篇: DIN EN 60601-2-10-2003 医疗电气设备.第2-10部分:神经和肌肉刺激器安全性特殊要求

Product Code:SAE AMS7261
Title:Rings, Sealing, Phosphonitrilic (Fz) Fluoroelastomer, High-Temperature-Fluid Resistant (Cancelled Aug 2001)
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification and its associated detai specifications cover phosphonitrillic (FZ) fluoroelastomers in the form of molded rings.【英文标准名称】:Workplaceair-Determinationofparticulateleadandleadcompounds-Flameorelectrothermalatomicabsorptionspectrometricmethod
【原文标准名称】:工作场所空气.铅颗粒及铅化合物的测定.火焰或电热原子吸收光谱法
【标准号】:BSISO8518-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-12
【实施或试行日期】:2005-01-12
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:工作场所;试验;含量测定;质量;铅;定义;空气;化学分析和试验;职业安全;原子吸收分光光度测定法;空气质量
【英文主题词】:Air;Airquality;Atomicabsorptionspectrophotometry;Chemicalanalysisandtesting;Definition;Definitions;Determinationofcontent;Lead;Occupationalsafety;Quality;Testing;Workingplaces
【摘要】:1ThisInternationalStandardspecifiesflameandelectrothermalatomicabsorptionspectrometricmethodsforthedeterminationofthetime-weightedaveragemassconcentrationofparticulateleadandleadcompoundsinworkplaceair.2Themethodisapplicabletopersonalsamplingoftheinhalablefractionofairborneparticles,asdefinedinISO7708,andtostatic(area)sampling.3Thesampledissolutionprocedurespecifieshotplateormicrowavedigestion,orultrasonicextraction(11.2).Theuseofanalternative,morevigorousdissolutionprocedureisnecessarywhenitisdesiredtoextractleadfromcompoundspresentinthetestatmospherethatareinsolubleusingthedissolutionproceduresdescribedherein.4Theflameatomicabsorptionmethodisapplicabletothedeterminationofmassesofapproximately1μgto200μgofleadpersample,withoutdilution[1].Theelectrothermalatomicabsorptionmethodisapplicabletothedeterminationofmassesofapproximately0,01μgto0,5μgofleadpersample,withoutdilution[1].5Theultrasonicextractionprocedurehasbeenvalidatedforthedeterminationofmassesofapproximately20μgto100μgofleadpersample,forlaboratory-generatedleadfumeairfiltersamples[2].6Theconcentrationrangeforleadinairforwhichthisprocedureisapplicableisdeterminedinpartbythesamplingprocedureselectedbytheuser(see10.1).
【中国标准分类号】:Z15
【国际标准分类号】:13_040_30
【页数】:40P.;A4
【正文语种】:英语