ASTM D 4222-1998 静态体积测量法测定催化剂氮吸附和解附等温线的标准试验方法
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来源:标准资料网
【英文标准名称】:StandardTestMethodforDeterminationofNitrogenAdsorptionandDesorptionIsothermsofCatalystsByStaticVolumetricMeasurements
【原文标准名称】:静态体积测量法测定催化剂氮吸附和解附等温线的标准试验方法
【标准号】:ASTMD4222-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:石油产品;氮;测量;表面吸附;解吸;试验;测定;催化剂
【英文主题词】:desorption;nitrogen;catalysts;testing;determination;adsorption;measurement;petroleumproducts
【摘要】:
【中国标准分类号】:G74
【国际标准分类号】:71_040_30;17_060
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:Cold-rolledstainlesssteelnarrowstripandcutlengths-Tolerancesondimensionsandshape
【原文标准名称】:冷轧不锈钢窄带材和剪切长度.尺寸和形状公差
【标准号】:BSEN10258-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-09-15
【实施或试行日期】:1997-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸公差;尺寸;耐热材料;形状公差;带材;尺寸测量;平整度;名称与符号;不锈钢;直径;冷加工;滚轧;宽度;厚度
【英文主题词】:
【摘要】:ThisEuropeanStandardappliestocold-rolledstainless,heatresistingandcreepresistingsteelflatproductsinthicknessesuptoandincluding3,0mmandrolledwidthsoflessthan600mmdeliveredas:a)narrowstrip(coilswitharolledwidth<600mm),b)slitcold-rollednarrowstrip,c)cutlengthsobtainedfromslitcold-rollednarrowstriporcold-rollednarrowstrip.Itdoesnotapplytocold-rolledstainless,heatresistingandcreepresistingsteelwidestripandplate/sheet(rolledwidth≥600mm,seeEN10259),ortocold-rolledproductsforwhichthereisaspecificstandard.
【中国标准分类号】:H46
【国际标准分类号】:77_140_20;77_140_50
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforNickelinWater
【原文标准名称】:水中镍含量的标准测试方法
【标准号】:ASTMD1886-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;镍;水;试验
【英文主题词】:atomicabsorption;chelation;graphitefurnace;nickel;water;
【摘要】:Elementalconstituentsinpotablewater,receivingwater,andwastewaterneedtobeidentifiedforsupportofeffectivepollutioncontrolprograms.TestMethodsA,B,andCprovidethetechniquesnecessarytomakesuchmeasurements.NickelisconsideredtoberelativelynontoxictomanandalimitfornickelisnotincludedintheEPANationalInterimPrimaryDrinkingWaterRegulations.7Thetoxicityofnickeltoaquaticlifeindicatestolerancesthatvarywidelyandthatareinfluencedbyspecies,pH,synergisticeffects,andotherfactors.Nickelisasilver-whitemetallicelementseldomoccur-ringinnatureintheelementalform.Nickelsaltsaresolubleandcanoccurasaleachatefromnickel-bearingores.Nickelsaltsareusedinmetal-platingandmaybedischargedtosurfaceorgroundwaters.1.1Thesetestmethodscovertheatomicabsorptiondeterminationofnickelinwaterandwastewaters.Threetestmethodsaregivenasfollows:ConcentrationRangeSectionsTestMethodA-AtomicAbsorption,Direct0.1to10mg/L7-16TestMethodB-AtomicAbsorption,Chelation-Extraction10to1000956;g/L17-26TestMethodC-AtomicAbsorption,GraphiteFurnace5to100956;g/L27-361.2TestMethodsA,B,andChavebeenusedsuccessfullywithreagentgradewaterandnaturalwaters.EvaluationofTestMethodCwasalsomadeincondensatefromamediumBtucoalgasificationprocess.Itistheuser'sresponsibilitytoensurethevalidityofthesetestmethodsforothermatrices.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardsstatements,seeNote4,11.7.1,21.9,23.7,and23.10.Twoformercolorimetrictestmethodswerediscontinued.RefertoAppendixX1forhistoricalinformation.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:11P.;A4
【正文语种】:
