【英文标准名称】:StandardPracticeforDeterminationofSolubleResidualContaminantsinMaterialsbyUltrasonicExtraction
【原文标准名称】:用超声萃取法测定材料中可溶残留污染物的标准实施规程
【标准号】:ASTMG136-2003(2009)
【标准状态】:现行
【国别】:美国
【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(US-ASTM)
【起草单位】:G04.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contaminant;contamination;extraction;nonvolatileresidue;oxygensystems;totalcarbon(TC);ultrasonicextraction;Contamination;Extractionmethods;Nonvolatileresidue(NVR);Oxygenservice/systems;Solublecontaminants;Totalcarbon(TC);Ultr
【摘要】:Thispracticeissuitableforthedeterminationofextractablesubstancesthatmaybefoundinmaterialsusedinsystemsorcomponentsrequiringahighlevelofcleanliness,suchasoxygensystems.Softgoods,suchassealsandvalveseats,maybetestedasreceived.Glovesandwipes,orsamplesthereof,tobeusedincleaningoperationsmaybeevaluatedpriortousetoensurethattheproposedextractingagentdoesnotextractordepositchemicals,orboth,onthesurfacetobecleaned.Wipesorothercleaningequipmentmaybetestedafterusetodeterminetheamountofcontaminantremovedfromasurface.Note18212;Theamountofmaterialextractedmaybedependentuponthefrequencyandpowerdensityoftheultrasonicunit.Theextractionefficiencyhasbeenshowntovarywiththefrequencyandpowerdensityoftheultrasonicunit.Theunit,therefore,mustbecarefullyevaluatedtooptimizetheextractionconditions.1.1Thispracticemaybeusedtoextractnonvolatileandsemivolatileresiduesfrommaterialssuchasnewandusedgloves,newandusedwipes,componentsoftgoods,andsoforth.Whenusedwithproposedcleaningmaterials(wipes,gloves,andsoforth),thispracticemaybeusedtodeterminethepotentialoftheproposedsolventorotherfluidstoextractcontaminants(plasticizers,residualdetergents,brighteners,andsoforth.)anddepositthemonthesurfacebeingcleaned.1.2Thispracticeisnotsuitablefortheevaluationofparticulatecontamination.1.3ThevaluesstatedinSIunitsaretoberegardedstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:5P.;A4
【正文语种】:英语
基本信息
标准名称: | DDZ-Ⅱ系列电动单组合仪表微分调节器 产品质量分等 |
替代情况: | JB/T57320-94 |
发布部门: | 全国工业过程测量和控制标委会 |
发布日期: | 1999-08-06 |
实施日期: | 2000-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
适用范围
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所属分类: 仪器 仪表 光学仪器 光学仪器综合 计量学和测量 物理现象 光学和光学测量 光学和光学测量综合