【英文标准名称】:StandardTestMethodforNitrogenOxides(Combined)ContentintheAtmospherebytheGriess-SaltzmanReaction
【原文标准名称】:用griss-saltzman反应法测定大气中氧化氮(结合)含量的标准试验方法
【标准号】:ASTMD3608-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氮氧化合物;含量测定;分析;试验;保健;职业安全;空气
【英文主题词】:ambientatmospheres;analysis;colorimetricanalysis;Greiss-Saltzmanreaction;nitricoxide;nitrogendioxide;nitrogenoxides;sampling
【摘要】:BothNO2andNOplayanimportantroleinphotochemical-smog-formingreactions.InsufficientconcentrationsNO2isdeleterioustohealth,agriculture,materials,andvisibility.Incombustionprocesses,significantamountsofNOmaybeproducedbycombinationofatmosphericnitrogenandoxygen;atambienttemperatures,NOcanbeconvertedtoNO2byoxygenandotheratmosphericoxidants.Nitrogendioxidealsomaybegeneratedfromprocessesinvolvingnitricacid,nitrates,theuseofexplosives,andwelding.1.1Thistestmethodcoversthemanualdeterminationofthecombinednitrogendioxide(NO2)andnitricoxide(NO)content,totalNOx;intheatmosphereintherangefrom4to10000g/m3(0.002to5ppm(v)).1.2Themaximumsamplingperiodis60minataflowrateof0.4L/min.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninbracketsareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:5P.;A4
【正文语种】: