MIL-STD-627, MILITARY STANDARD: SPROCKET WHEELS FOR POWER TRANSMISSION AND CONVEYING CHAINS (06 SEP 1962) [NO S/S DOCUMENT]., This is a design standard covering the various tooth forms for sprockets used with power transmission and conveyor chains adopted for standardization by the Military.【英文标准名称】:StandardPracticeforExtractionofSolidWasteSamplesforChemicalAnalysisUsingSoxhletExtraction
【原文标准名称】:用索格利特萃取法对化学分析用固体废弃物样品的萃取的标准实施规程
【标准号】:ASTMD5369-1993(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【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】:D34.01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:nonvolatile;semivolatile;solid;samples;Extractionmethods;Granularwaste;Nonvolatilemattercontent--wastematerials;Sediment;Semi-volatileorganic/inorganiccompounds;Sludge;Sludgesampling;Soil;Solvents--wasteapplications;Soxhletextractio
【摘要】:Thispracticeprovidesageneralprocedureforthesolventextractionoforganicsfromsoils,sediments,sludges,andfine-grainedsolidwastes.Itmaybeusedastheinitialstepinthesolventextractionoforganicconstituentsfromwastematerialsforthepurposeofquantifyingextractableorganiccompounds.Whentheappropriateextractionsolventisused,theprocedurecanbeappliedtothedeterminationofthetotalsolventextractablecontent(TSEC)ofthesample.TheextractionofnonvolatileorsemivolatileorganiccompoundsfromtheabovesolidwasteshouldusesolventslistedinTable1orSW846Method3540.Thedetectionlimit,linearconcentrationrange,andsensitivityofthemethodforspecificorganiccompoundanalysiswilldependuponthemethodusedforinstrumentalanalysisandwillalsodependuponthesampleclean-upandsolventconcentrationmethodsused.TypicaldetectionlimitsthatcanbeachievedforGCorGC/MSareinthepartspermillionandsub-partspermillionrange.Themethoddetectionlimitcanbeadjustedbyvaryingthevolumeofextractusedandbyadditionalsampleclean-uppriortoanalysis.Soxhletextractionhasanadvantagewhenanalyzingsolidwasteandsoil/wastemixtureswhichformemulsionswithmorerigoroussolventmixingextractiontechniques.TABLE1SelectedApplicationsofSoxhletExtractionforExtractionofOrganicConstituentsfromSolidMatricesSampleMatrixSolventCompoundsorConstituentsExtractionTime,h(cycles)Reference(1)Sediment
1,1,1-trichloro-1,2,2-trifluoroethane(Freon)
oilandgrease
4(80)
(1)APlumb(1983)
(2)Sludgesandsimilarmaterials
1,1,1-trichloro-1,2,2-trifluoroethane(Freon)
oilandgrease
4(80)
(2)StandardMethods
(3)Sludgesfromsewage
hexanethenmethanol
totalorganicCoil,grease,fats
24
(3)Strachan(1983)
(4)Municipalwastewatersuspendedsolidsandactivatedcarbon
hexane/dichloromethane
semivolatileprioritypollutants
24(480)
(4)Harrold(1982)
(5)Soilandhousedust
acetone/hexane(1:1)
organochlorineinsecticides
5(60)
(5)EPA(1980)
(6)Sediment
dichloromethane
phenols
8
(6)Goldberg(1980)
(7)Soil
a)acetone/n-hexane(1:1)