标准名称：	采用闭式小室测试采暖散热器热工性能标准
中标分类：	建材 >> 建筑构配件与设备 >> 建筑暖通、空调器材设备
发布日期：
实施日期：	1987-05-01
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【英文标准名称】:Workplaceairquality—Determinationofisocyanateinairusingadouble-filtersamplingdeviceandanalysisbyhighpressureliquidchromatography
【原文标准名称】:工作场所空气质量.双联滤器取样设备和高效液相色谱法分析和测定空气中异氰酸盐
【标准号】:ISO17736-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-12-15
【实施或试行日期】:2010-12-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC146
【标准类型】:()
【标准水平】:()
【中文主题词】:空气;空气污染;空气质量;分析;化学分析和测试;色谱法;含量测定;过滤器;高效液相色谱法;高效液相色谱分析法;异氰酸酯;有机化合物;质量;取样;采样设备;技术数据单;工作地点;工作场所安全性
【英文主题词】:Air;Airpollution;Airquality;Analysis;Chemicalanalysisandtesting;Chromatography;Determinationofcontent;Filters;Highperformanceliquidchromatography;HPLC;Isocyanates;Organiccompounds;Quality;Sampling;Samplingequipment;Technicaldatasheets;Workingplaces;Workplacesafety
【摘要】:ThisInternationalStandardgivesgeneralguidelinesforthesamplingandanalysisofairborneisocyanatesinworkplaceair.ThisInternationalStandardisappropriatefororganiccompoundscontainingfreeisocyanatefunctionalgroupsandisspecificforthequantificationofmonomers,polymersandprepolymers,vapoursandaerosols.Differentialairsamplingisperformedwithasegregatingdevicewhichcanshowthephysicalstateoftheisocyanatesanalysedasfoundinthefield.Thiscapacity,however,mayshowlimitationsforgivensituations,e.g.whenaerosolscollectedonthefirstfiltercontainfreemonomerthatmigratestothesecondfilterandisthenquantifiedasvapourphaseisocyanate.Thedeterminationofaromaticmonomersincludestoluenediisocyanate(TDI)and4,4'-diisocyanato-diphenylmethane(MDI).Aliphaticmonomersincludeisophoronediisocyanate(IPDI),4,4'-methylenebis-(cyclohexylisocyanate)(HMDI)and1,6-hexamethylenediisocyanate(HDI).Isocyanateoligomersandprepolymerscanalsobedeterminedusingthismethod.Thedouble-filtermethodisdesignedtodetermineshort-term(15min)exposureconcentrationsoforganicisocyanatesinaworkplaceenvironmentbypersonalmonitoringorbyfixedlocationmonitoring.However,iftheexposureisexpectedtobeinvapourformonly,thensamplingtimecanbeextendedto8h.Sincethefilterisderivatizedinthefieldimmediatelyaftersampling,lossofisocyanateaerosolbecauseofitsreactionwithotherchemicalsisnegligibleexceptforveryfast-reactingisocyanatesystemssuchasfoamsprayingofMDIinpolyurethaneapplications.ThemethodissuitableforthemeasurementofairborneorganicisocyanatesintheNCOequivalentconcentrationrangeof0,01μg/sampleto2,1μg/sample,correspondingtoapproximately0,67μg/m3to140μg/m3fora15lsamplevolume.Thisrangebracketsabouteighttimesthecurrentestablishedthresholdlimitvalue(TLV)of5ppbformonomerssetbymanynationalauthorities.
【中国标准分类号】:
【国际标准分类号】:13_040_30
【页数】:34P.;A4
【正文语种】:英语