ISO 5005-1977 土方机械重心位置测定的方法

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【英文标准名称】:Indoor,ambientandworkplaceair-Samplingandanalysisofvolatileorganiccompoundsbysorbenttube/thermaldesorption/capillarygaschromatography-Part2:Diffusivesampling
【原文标准名称】:室内、环境和工作场所空气.用吸附管/热解吸/毛细管气相色谱法作挥发性有机化合物的取样及分析第2部分:扩散取样
【标准号】:ISO16017-2-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-05
【实施或试行日期】:
【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】:气体分析;解吸;含量测定;吸管;采样设备;挥发性有机化合物;金属;质量;室内空气;空气质量;分析;取样;试样;工作地点;环境空气;空气污染;扩散样品;气相色谱法;有机化合物;挥发性的;空气
【英文主题词】:Air;Airpollution;Airpurification;Airquality;Ambientair;Analysis;Atmosphericpollutants;Bearings;Calibration;Chromium;Collectors;Compounds;Concentration;Desorption;Determinationofcontent;Diffusivesamplers;Exteriorareas;Gasanalysis;Gaschromatography;Gasphasechromatography;Indoorclimate;Indoors;Inneratmosphere;Interferences;Laboratoryware;Mathematicalcalculations;Metals;Methodsofanalysis;Openair;Operatingstations;Organic;Organiccompounds;Passivecollectors;Pipes;Quality;Rooms;Samples;Sampling;Samplingequipment;Samplingmethods;Sidetesters;Solvents;Sorbenttubes;Sorption;Testgases;Testresults;Testing;Thermal;Thermics;Tubes;Vapours;Volatile;Volatilematterdetermination;Volatileorganiccompoundcontent;Volatileorganiccompounds;Workingplaces
【摘要】:ThispartofISO16017givesgeneralguidanceforthesamplingandanalysisofvolatileorganiccompounds(VOCs)inair.Itisapplicabletoindoor,ambientandworkplaceair.ThispartofISO16017isapplicabletoawiderangeofVOCs,includinghydrocarbons,halogenatedhydrocarbons,esters,glycolethers,ketonesandalcohols.AnumberofsorbentsarerecommendedforthesamplingoftheseVOCs,eachsorbenthavingadifferentrangeofapplicability.Verypolarcompoundsgenerallyrequirederivatisation;verylowboilingcompoundsareonlypartiallyretainedbythesorbentsandcanonlybeestimatedqualitatively.Semi-volatilecompoundsarefullyretainedbythesorbents,butmayonlybepartiallyrecovered.ThispartofISO16017isapplicabletothemeasurementofairbornevapoursofVOCsinamassconcentrationrangeofapproximately0,002mg/mto100mg/mindividualorganicforanexposuretimeof8h,or0,3μg/mto300μg/mindividualorganicforanexposuretimeoffourweeks.Theupperlimitoftheusefulrangeissetbythesorptivecapacityofthesorbentusedandbythelineardynamicrangeofthegaschromatographcolumnanddetectororbythesamplesplittingcapabilityoftheanalyticalinstrumentationused.Thelowerlimitoftheusefulrangedependsonthenoiselevelofthedetectorandonblanklevelsofanalyteand/orinterferingartefactsonthesorbenttubes.Artefactsaretypicallysub-nanogramforwell-conditionedTenaxGRandcarbonaceoussorbentssuchasCarbopack/Carbotraptypematerials,carbonizedmolecularsievessuchasSpherocarbandpurecharcoals.ArtefactsaretypicallyatlownanogramlevelsforTenaxTAandat5ngto50nglevelsforotherporouspolymerssuchasChromosorbsandPorapaks.note:1)ThesorbentslistedinAnnexBandelsewhereinthispartofISO16017arethoseknowntoperformasspecifiedunderthispartofISO16017.Eachsorbentorproductthatisidentifiedbyatrademarkednameisuniqueandhasasolemanufacturer;however,theyarewidelyavailablefrommanydifferentsuppliers.ThisinformationisgivenfortheconvenienceofusersofthispartofISO16017anddoesnotconstituteanendorsementbyISOoftheproductnamed.Equivalentproductsmaybeusediftheycanbeshowntoleadtothesameresults.
【中国标准分类号】:C51
【国际标准分类号】:13_040_01
【页数】:36P;A4
【正文语种】:英语


Product Code:SAE AMS3215
Title:Acrylonitrile Butadiene (Nbr) Rubber Aromatic Fuel Resistant 65-75
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a nitrile (NBR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. Primarily for parts, such as gaskets, diaphragms, bushings, grommets, and sleeves, requiring resistance to aromatic and aliphatic fuels when continuously or alternately exposed to both.