MIL-STD-1491 (NOTICE 1)
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MIL-STD-1491 (NOTICE 1), MILITARY STANDARD: GLOSSARY OF KNITTING IMPERFECTIONS (17 SEPT 1973)., Holders of MIL-STD-1491 will verify that pages changed above have been enteredand will destroy the previous pages. The notice page will be retained as a checksheet. This issuance, together with appended pages, is a separate publicationEach notice is to be retained by stocking points until Military Standard is completelyrevised or canceled.
【英文标准名称】:Specificationforlowvoltageswitchgearandcontrolgearforindustrialuse-Mountingrails-Tophatrails35mmwideforsnap-onmountingofequipment
【原文标准名称】:工业用低压开关设备和控制装置规范.支承轨.设备快速安装用35mm宽凹顶轨
【标准号】:BS5584-1978
【标准状态】:作废
【国别】:英国
【发布日期】:1978-05-31
【实施或试行日期】:1978-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:低压电器;电控制设备;形状公差;支座;基座;钢轨;工业的;形状;家用的;钢;开关设备;尺寸
【英文主题词】:Design;Dimensions;Electricenclosures;Electricalengineering;Electricalinstallations;Fixings;Industries;Instruments;Lowvoltage;Low-voltageequipment;Materials;Mountingrails;Rails;Switchgear;Switchgears;Tolerances(measurement);Tophatrails
【摘要】:Dimensions,designation,material,finishandtolerancesfortwosizesofrail.Anappendixgivesguidanceonuseoftophatrails.
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforSequentialBatchExtractionofWastewithWater
【原文标准名称】:含水废弃物的连续成批萃取的标准试验方法
【标准号】:ASTMD4793-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D34.01.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:extract;extractionfluid;leaching;sequentialbatchextraction;wasteleachingtechnique;Acidity,alkalinity,pH--chemicals;Batchprocedures;Bufferingaction;Chemicalanalysis--waste;Extractionmethods;Filters/filterprocedures;Leachates/leach
【摘要】:Thistestmethodisintendedasameansforobtainingsequentialextractsofawaste.Theextractsmaybeusedtoestimatethereleaseofcertainconstituentsofthewasteunderthelaboratoryconditionsdescribedinthistestmethod.Thistestmethodisnotintendedtoprovideextractsthatarerepresentativeoftheactualleachateproducedfromawasteinthefieldortoproduceextractstobeusedasthesolebasisofengineeringdesign.Thistestmethodisnotintendedtosimulatesite-specificleachingconditions.Ithasnotbeendemonstratedtosimulateactualdisposalsiteleachingconditions.AnintentofthistestmethodisthatthefinalpHofeachoftheextractsreflectstheinteractionoftheextractantwiththebufferingcapacityofthewaste.AnintentofthistestmethodisthatthewaterextractionsreflectconditionswherethewasteisthedominantfactorindeterminingthepHoftheextracts.Thistestmethodproducesextractsthatareamenabletothedeterminationofbothmajorandminorconstituents.Whenminorconstituentsarebeingdetermined,itisespeciallyimportantthatprecautionsaretakeninsamplestorageandhandlingtoavoidpossiblecontaminationofthesamples.Thistestmethodhasbeentestedtodetermineitsapplicabilitytocertaininorganiccomponentsinthewaste.Thistestmethodhasnotbeentestedforapplicabilitytoorganicsubstances,volatilematter(seeNote3in5.15),orbiologicallyactivesamples.Theagitationtechnique,rate,liquid-to-solidratio,andfiltrationconditionsspecifiedintheproceduremaynotbesuitableforextractingalltypesofwastes(seeSections7,8,andthediscussioninAppendixX1).1.1Thistestmethodisaprocedureforthesequentialleachingofawastecontainingatleastfive%solidstogeneratesolutionstobeusedtodeterminetheconstituentsleachedunderthespecifiedtestingconditions.1.2Thistestmethodcallsfortheshakingofaknownweightofwastewithwaterofaspecifiedpurityandtheseparationoftheaqueousphaseforanalysis.Theprocedureisconductedtentimesinsequenceonthesamesampleofwasteandgeneratestenaqueoussolutions.1.3Thistestmethodisintendedtodescribetheprocedureforperformingsequentialbatchextractionsonly.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:10P.;A4
【正文语种】:英语
