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ASTM F2619/F2619M-2007 高密度聚乙烯(PE)线路管道用标准规范

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【英文标准名称】:StandardSpecificationforHigh-DensityPolyethylene(PE)LinePipe
【原文标准名称】:高密度聚乙烯(PE)线路管道用标准规范
【标准号】:ASTMF2619/F2619M-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:F17.60
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:gas;gasgathering;LVP;multiphase;oil;oilfield;PEfittings;PElinepipe;PEpipe;plasticpipe;polyethylenefittings;polyethylenelinepipe;polyethylenepipe;water
【摘要】:1.1Thisspecificationcoversrequirementsandtestmethodsforhigh-densitypolyethylene(PE)materials,pipeandfittingsforpressureornon-pressureoilandgasproducingapplicationstoconveyfluidssuchasoil,dryorwetgas,multiphasefluids,andnon-potableoilfieldwater.Thisspecificationdoesnotcoverpipeforgasdistributionapplications.1.1.1Forthepurposesofthisspecification,high-densitypolyethylenematerialisSpecificationD3350densitycellclassification3orhigher.ThisspecificationdoesnotcovermaterialshavingSpecificationD3350densitycellclassificationlessthan3suchasmediumorlowdensitypolyethylenematerials.1.2Units8212;ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyofeachother.Combiningvaluesfromthetwosystemsmayresultinnon-compliancewiththestandard.Valuesinparenthesesareprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P94
【国际标准分类号】:23_040_20
【页数】:13P.;A4
【正文语种】:英语


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【英文标准名称】:MagnesiumalloyMG-C18002-T4-Chillcasting
【原文标准名称】:航天航空系列.镁合金MG-C18002.T4.冷型铸造
【标准号】:BSEN4616-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-11-17
【实施或试行日期】:2005-11-17
【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】:航空航天运输;航空运输;合金;铸造合金;铸件;化学成分;冷型铸造;镁合金;材料;材料数据;半成品;航天运输;规范(验收)
【英文主题词】:Aerospacetransport;Airtransport;Alloys;Castingalloys;Castings;Chemicalcomposition;Chillcasting;Magnesiumalloys;Materials;Materialsdata;Semi-finishedproducts;Spacetransport;Specification(approval)
【摘要】:Thisstandardspecifiestherequirementsrelatingto:MagnesiumalloyMG-C18002T4Chillcastingforaerospaceapplications.
【中国标准分类号】:V11
【国际标准分类号】:49_025_15
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforAmmoniaNitrogenInWater
【原文标准名称】:水中氨态氮的标准试验方法
【标准号】:ASTMD1426-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ammonia;analysis;calorimetric;electrode;water;Electrodes;Ferrous-ferricreferencesolutions;Inorganiccompounds--water;Ionselectiveelectrodemethod;Nitrogencontent--water;Ammoniacontent;Ammonianitrogencontent;Colorimetricanalysis--wa
【摘要】:Nitrogenisanutrientintheenvironmentandisnecessarytosustaingrowthofmostorganisms.Itexistsinseveralformssuchasnitrate,nitrite,organicnitrogensuchasproteinsoraminoacids,andammonia.Ammoniaisacolorless,gaseouscompoundwithasharpdistinctiveodor.ItishighlysolubleinwaterwhereitexistsinamolecularformassociatedwithwaterandinanionizedformasNH4+.TheextentofassociationorionizationisdependentonthetemperatureandpH.Itmayalsobetoxictoaquaticlife.Theextentoftoxicityisdependentuponspeciesandextentofdissociation.Ammoniamayoccurinwaterasaproductofanaerobicdecompositionofnitrogencontainingcompoundsorfromwastestreamscontainingammonia.1.1Thesetestmethodscoverthedeterminationofammonianitrogen,exclusiveoforganicnitrogen,inwater.Twotestmethodsareincludedasfollows:
Sections
TestMethodAx2014;DirectNesslerization
7to15
TestMethodBx2014;IonSelectiveElectrode
16to24