【英文标准名称】:StandardTestMethodsforPolymerContentofStyreneMonomerandAMS(alpha-Methylstyrene)
【原文标准名称】:乙烯基苯和AMS(α-甲基苯乙烯)的聚合物含量用标准试验方法
【标准号】:ASTMD2121-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D16.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:芳族化合物;芳烃;含量测定;单体;油性涂料;涂料;高聚物;溶剂;苯乙烯;试验
【英文主题词】:methylstyrene;AMS;polymer;polymercontent;styrene;styrenemonomer
【摘要】:ThistestmethodcanbeusedfordeterminingpolymerconcentrationsinstyrenemonomerorAMS.Thistestmethodwillnotdetectdimersandtrimers.Thistestmethodcanbeusedforplantcontrolandforspecificationanalysis.1.1ThesetestmethodscoverthedeterminationofthepolymercontentofstyrenemonomerandAMS(-Methylstyrene).Itshouldbenoted,however,thatdimersandtrimersarenotmeasuredbythesetestmethods.1.2TestMethodAwhichisbasedontheuseofaspectrophotometerorphotometer,isintendedforthequantitativedeterminationofthepolymercontentofstyrenemonomerorAMSinconcentrationsupto15mg/kg.Samplescontainingmorethan15mg/kgofpolymermustbesuitablydilutedbeforemeasurement.1.3TestMethodBisarapidvisualprocedurethatisintendedfortheapproximateevaluationofpolymertoamaximumconcentrationof1.0weight%.Sampleshavingapolymercontentof1.0weight%orgreatershouldbesuitablydilutedpriortomeasurement.1.4Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8.
【中国标准分类号】:G17
【国际标准分类号】:71_080_15
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Facadescaffoldsmadeofprefabricatedcomponents-Part1:productspecifications.
【原文标准名称】:预制件组件制正面脚手架.第1部分:产品规范
【标准号】:NFP93-500-1-2004
【标准状态】:现行
【国别】:法国
【发布日期】:2004-09-01
【实施或试行日期】:2004-09-05
【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】:建筑;安全工程;正面脚手架;规范(验收);定义;材料;安全要求;尺寸;脚手架;加劲杆;试验(质量保证);职业安全;性能要求;尺寸选定;工作脚手架;吊式脚手架;事故预防;组件;工作场所安全
【英文主题词】:
【摘要】:
【中国标准分类号】:P96
【国际标准分类号】:91_220
【页数】:24P;A4
【正文语种】:其他