神的英文怎么说-伦敦艺术大学排名
2023年4月4日发(作者:英语四级多少分及格)
TheTCLP:ToxicityCharacteristicLeachingProcedure
TheTCLP,orToxicityCharacteristicLeaching(notLeachate)Procedureis
designedtodeterminethemobilityofbothorganicandinorganicanalytespresentin
liquid,solid,usuallyusedtodetermineifawaste
maymeetthedefinitio深恶痛疾的意思 nofEPToxicity,thatis,carryingahazardouswastecode
underRCRA(40CFRPart261)thegenerator\'s
responsibilitytomakethisdetermination,butgeneratorsoftencontractoutsidelabs
toperformtheTCLPtest,thesequestionsandanswersmaybehelpfulto
sreasonandsometimesincleanupactions,businessesareoften
eofFederal
Regulations(CFR)40CFR261.24,outlinesthe40contaminantstheTCLPanalysis
testsfor(SeeTable1—MaximumConcentrationofContaminantsforToxicity
Characteristic).Ifa“SolidWaste”failsthetestforoneormoreofthesecompounds,
thewasteisconsideredtobeacharacteristichazardouswaste–unlessthereisan
mind,too,thatacharacteristicwastemaystillalsobea
“listed”hazardouswaste.
WhatdoestheTCLPAnalysisShow?
me,waterandother
colatingliquidoftenreactswiththe
solidwasteinthelandfill,andmayposepublicandenvironmentalhealthrisks
Panalysisdetermineswhich
ofthecontaminantsidentifiedbytheUnitedStatesEnvironmentalProtection
Agency(EPA)arepresentintheleachateandtheirconcentrations.
WhoPerformstheTCLP?
Therearemanybusinesses,inalmosteverystate,whocanperformthese
theyellowpagesunder“Laboratories—Analytical”.Many
laboratorieswilloffercourierservicesforanominalfee,andprovidesampling
ssesinremoteareasshould
contactthenearestlabtodiscusssamplingprotocolandsamplepreparationfor
ersamplehandlingcanresultinunreliabletestresults
andwastedmoney!
Whatdoesitcost?
ThecostoftheTCLPdependsonthelaboratoryandlocation;buttypically,a
fullTCLPanalysismaycostasmuchas$3,000.
WhenisaWasteHazardous?
Awasteisconsideredhaz温庭筠 菩萨蛮 ardouswhenitexhibitsoneormoreofthe
followingcharacteristics:
Ignitable(Flashpoint<140F)
Corrosive(aqueouspH<2or>12.5)
Table1—MaximumConcentrationof
ContaminantsforToxicityCharacteristic
EPA
HW
#ContaminantRegulatory
Level(mg/
l)
D004Arsenic(As)5.0
D005Barium(Ba)100.0
D018Benzene0.5
D006Cadmium(Cd)1.0
D019CarbonTetrachloride0.5
D020Chlordane0.03
D021Chlorobenzene100.0
D022Chloroform6.0
D007Chromium(Cr)5.0
D023o-Cresol200.0
D024m-Cresol200.0
D025p-Cresol200.0
D026Cresol200.0
D0162,4-D10.0
D0271,4-Dichlorobenzene7.5
D0281,2-Dichloroethane0.5
D0291,1-Dichloroethylene0.7
D0302,4-Dinitrotolue朱门酒肉臭正确读音 ne0.13
D012Endrin0.02
D031Heptachlor0.008
D032Hexachlorobenzene0.13
D033Hexachlorobutadiene0.5
D034Hexachloroethane3.0
D008Lead(Pb)5.0
D013Lindane0.4
D009Mercury(Hg)0.2
D014Methoxychlor10.0
D035Methylethylketone200.0
D036Nitrobenzene2.0
D037Pentachlorophenol100.0
D038Pyridine5.0
D010Selenium(Se)1.0
D011Silver(Ag)5.0
D039Tetrachloroethylene0.7
D015Toxaphene0.5
D040Trichloroethylene0.5
D0412,4,5-Trichlorophenol400.0
D0422,4,6-Trichlorophenol2.0
D0172,4,5-TP(Silvex)1.0
D043VinylChloride0.2
Reactive(normallyunstable,undergoesviolentchangeswithoutdetonating,waterreactive)
Toxic(exceedingtheregulatorylimitsforcontaminantsundertheTCLPor“7-11test”
analysis)
ORitis“Listed”intheCFR(wasteswhicharepre-definedandcategorized)
Forthepurposesofthisfactsheet,awasteisconsideredhazardousduetotoxicityifitexhibitsresultsexceedingthe
sreason,
calltheyourstateEPA(DEP,DER,etc.)ortalktoyourhazardouswasteinspectorifyouhaveANYquestions!
HazardousWasteFactSheet:
TCLP:ToxicityCharacteristicLeachingProcedureand
CharacteristicHazardousWastes
ProvidedbyEHSO:
(Continuedfrompage1)
EXAMPLES
AutoRepair:
Anautorepairshopuses“hi-flash”ventdoesnotcontainany
esolventbecomesdirty,ventextractedfromthe
distillationisplacedbackintouse,andthe“stillbottoms”orcontaminantsfromthesolventextractionarethewaste
storatory
performsthe“7-11test”,andtheresultsindicatethefollowing:
Lead0.8mg/l
Cadmium0.5mg/l
Chromium8.0mg/l
Lookingatthetableonthefrontofthisfactsheet,leadandcadmiumexhibitconcentrationsbelowregulatory
llbottomsexhibittoxicityduetohighchromiumlev送李中丞归汉阳别业 els,and
wouldbeconsideredahazardouswasteD007.
AutoBody:
Theexhaustfiltersinthhebody
shopusesmanydifferenttypesofpaintsandprimers,itsdifficulttodetermineifthefiltersarehazardouswithoutan
ainingfiltersareplace曹魏64名将 dintocontainersand
marked“filterspendinganalysis”.Thelaboratoryperformsthe“7-11test”,andtheresultsindicatethefollowing:
Lead9.1mg/l
Chromium0.4mg/l
Barium0.85mg/l
Methylethylketone(MEK)10mg/l
austfiltersaredeemedhazardousduetoleadtoxicity,and
inessownerrememberedthatheusedaspecialprimerafriendgavehim.
AfterlookingattheMater琅琊溪翻译赏析 ialSafetyDataSheet(MSDS),thebusinessownerfoundoutwhythefiltersfailedthetest.
thslater,iness
ownerhadkeptdetailedrecordsofallthepaintsandprimerssprayed,alongwiththetotalquantitiessincethelast
ranalysiswasperformed,andtheanalyticalreportindicatedallofthecontaminantswere
terswerenotfoundtoexhibitanycharacteristicsoftoxicity,andwereallowed
ethebusinessownermaintaineddetailedrecords,further
testingwouldnotberequiredunlessthetypesofpaintandprimerschanged.
GeneralManufacturing:
Tcessrequiresthemto
dismantlethecomponents,alcomponentsare
placedintoasandblastingcabinet,onthsofuse,theblasting
mediabecameineffective,blastingmaterialwasplacedintoametaldrum,and
labeled“usedblastingmediapendinganalysis”.Arepresentativesamplewastakentothelaboratoryforthe“7-11
test”ultsare:
Arsenic0.5mg/l
Barium10mg/l
Cadmium2.0mg/l
Chromium15.0mg/l
Lead25mg/l
ThisanalysisreportedCadmium,stermediawaste
wouldbeclassifiedastoxicduetohighconcentrationsofCadmiumD006,
wastewouldbelabeledasaD006,D007,D008hazardouswaste.
Formoreinformationonthisandmanyotherenvironmental,healthandsafetysubjects,
suchaswheretofindalistoflabs,goonlinetol
alphabetizedtableofcontentsisfoundat/.
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