【英文标准名称】:StandardTestMethodforThiocyanateinWater
【原文标准名称】:水中硫氰酸盐含量的标准试验方法
【标准号】:ASTMD4193-2008
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cyanide;cyanogenchloride;ferricions;macroreticularresin(XAD-8);spectrophotometer;thiocyanate;Coalproducts;Colorimetricanalysis--water;Cyanides;Cyanogenchloride;Decomposition;Ferricions;Industrialwatertreatment;Macroreticularresin(
【摘要】:Thistestmethodisusefulforanalysisofmanynaturalwatersthatcontainthiocyanatefromorganicdecompositionproductsandwastewaterdischarges.Someindustrialwastes,suchasthosefromthemetallurgicalprocessingofgoldores,steelindustry,petroleumrefining,andcoalgasification,maycontainsignificantconcentrationsofthiocyanate.Thiocyanateperseisnotrecognizedasatoxicchemicalcompound.However,whenchlorinated,thiocyanateisconvertedtothehighlytoxicandvolatilecyanogenchlorideathighpH.Oxidationofthiocyanatemayalsoreleasetoxichydrogencyanide.TheuserofthemethodisadvisedtoperformholdingtimestudiesinaccordancewithPracticeD4841wheneveroxidantsarepresentinthesamples.Forinformationontheimpactofcyanogensandcyanidecompounds,seeAppendixX1ofTestMethodD2036.1.1Thistestmethodcoversthequantitativecolorimetriclaboratorymeasurementofdissolvedthiocyanateinwater,wastewater,andsalinewaterintherangefrom0.1to2.0mg/L.Forhigherconcentrations,useanaliquotfromthedilutedsample.1.1.1Validation8212;Thistestmethodwasvalidatedovertherangeof0.07to1.42mg/L.Thistestmethodwasvalidatedatninelaboratoriesatfourlevels.Thistestmethodmaybevalidforreportingresultsdowntolowerlevelsasvalidatedinindividualuserlaboratories.1.1.2Application8212;Thistestmethodhasbeenvalidatedinreagentwater,TypeII,inmultiplelaboratoriesand7naturalwaters,1laboratoryeffluent,1steelmilleffluent,and2dechlorinatedandtreatedsanitaryeffluentsinsinglelaboratories.Itistheuser''sresponsibilitytoassurethevalidityofthetestmethodonanyuntestedmatrices.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:6P.;A4
【正文语种】:英语