WS/T 158-1999 作业场所空气中1,4－丁内酯的溶剂解吸气相色谱测定方法
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来源:标准资料网
基本信息
| 标准名称： | 作业场所空气中1,4－丁内酯的溶剂解吸气相色谱测定方法 |
| 英文名称： | Workplace air —Determination of 1 4-butyrolactone—Solvent desorption gas chromatographic method |
| 中标分类： |
医药、卫生、劳动保护 >>
卫生 >>
劳动卫生 |
| 替代情况： | 被GBZ/T 160.63-2004代替 |
| 发布日期： | 1999-12-29 |
| 实施日期： | 2000-05-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2004-12-01 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2004-04-24 |
| 页数： | 5页 |
| 书号： | 155066.2-13148 |
适用范围
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前言
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目录
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引用标准
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所属分类： 医药 卫生 劳动保护 卫生 劳动卫生
Product Code:SAE AMS4845
Title:Tin Bronze Castings, Sand and Centrifugal, 87.5Cu - 10Sn - 2Zn, As Cast
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers a tin bronze in the form of sand and centrifugal castings.These castings have been used typically for bearings requiring a combination of strength, toughness, and resistance to wear, but usage is not limited to such applications . The alloy has good machinability and corrosion resistance to sea water.【英文标准名称】:StandardTestMethodforIdentificationandQuantificationofChromium,Bromine,Cadmium,Mercury,andLeadinPolymericMaterialUsingEnergyDispersiveX-raySpectrometry
【原文标准名称】:用能量色散X射线分光法鉴定并量化聚合材料中铬溴、镉、汞和铅的标准试验方法
【标准号】:ASTMF2617-2008e1
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:F40.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:energydispersive;plastic;polymer;polymericmaterials;Xray;X-rayfluorescence,EDXRF;Hexavalentchromiumtesting;Polymericmaterials;Brominecontent;Chromium
【摘要】:Thistestmethodisintendedforthedeterminationofchromium,bromine,cadmium,mercury,andlead,inhomogeneouspolymericmaterials.Thetestmethodmaybeusedtoascertaintheconformanceoftheproductundertesttomanufacturingspecifications.Typicaltimeforameasurementis5to10minperspecimen,dependingonthespecimenmatrixandthecapabilitiesoftheEDXRFspectrometer.1.1ThistestmethoddescribesanenergydispersiveX-rayfluorescence(EDXRF)spectrometricprocedureforidentificationandquantificationofchromium,bromine,cadmium,mercury,andleadinpolymericmaterials.1.2Thistestmethodisnotapplicabletodeterminetotalconcentrationsofpolybrominatedbiphenyls(PBB),polybrominateddiphenylethers(PBDE)orhexavalentchromium.Thistestmethodcannotbeusedtodeterminethevalencestatesofatomsorions.1.3Thistestmethodisapplicableforarangefrom20mg/kgtoapproximately1wt%forchromium,bromine,cadmium,mercury,andleadinpolymericmaterials.1.4Thistestmethodisapplicableforhomogeneouspolymericmaterial.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesgiveninparenthesesareforinformationonly.1.6Thistestmethodisnotapplicabletoquantitativedeterminationsforspecimenswithoneormoresurfacecoatingspresentontheanalyzedsurface;however,qualitativeinformationmaybeobtained.Inaddition,specimenslessthaninfinitelythickforthemeasuredXrays,mustnotbecoatedonthereversesideormountedonasubstrate.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:9P.;A4
【正文语种】:英语
