SAE AMS3647 Polyfluoroethylene Propylene Film and Sheet
作者:标准资料网 时间:2024-05-19 15:51:01 浏览:8025
来源:标准资料网
Product Code:SAE AMS3647
Title:Polyfluoroethylene Propylene Film and Sheet
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers polyfluoroethylenepropylene in the form of film and sheet 0.020 inch (0.51 mm) and under in nominal thickness. These products have been used typically for electrical, electronic, and mechanical applications requiring a chemically-inert film of the fluorocarbon family, having high dielectric strength and volume resistivity, and being free from pinholes and electrical flaws. Usage is not limited to such applications.
【英文标准名称】:StandardGuideforSelectionofMethodsforAssessingGroundWaterorAquiferSensitiviyandVulnerability
【原文标准名称】:评价地下水或含水层敏感性和脆弱性的方法选择标准指南
【标准号】:ASTMD6030-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifers;contamination;groundwaterflow;pollution;Aquifers;Contamination--soil;Groundwater;Pollution;Waterqualitydegradation
【摘要】:Sensitivityandvulnerabilitymethodscanbeappliedtoavarietyofhydrogeologicsettings,whetherornottheycontainspecificallyidentifiedaquifers.However,somemethodsarebestsuitedtoassessgroundwaterwithinaquifers,whileothersassessgroundwateraboveaquifersorgroundwaterinareaswhereaquifershavenotbeenidentified.Intergranularmediasystems,includingalluviumandterracedeposits,valleyfillaquifers,glacialoutwash,sandstones,andunconsolidatedcoastalplainsedimentsarecharacterizedbyintergranularflow,andthusgenerallyexhibitslowerandmorepredictableground-watervelocitiesanddirectionsthaninfracturedmedia.Suchsettingsareamenabletoassessmentbythemethodsdescribedinthisguide.Hydrologicsettingsdominatedbyfracturefloworflowinsolutionopeningsaregenerallynotamenabletosuchassessments,andapplicationofthesetechniquestosuchsettingsmayprovidemisleadingortotallyerroneousresults.Themethodsdiscussedinthisguideprovideuserswithinformationformakingland-andwater-usemanagementdecisionsbasedontherelativesensitivityorvulnerabilityofunderlyinggroundwateroraquiferstocontamination.Mostsensitivityandvulnerabilityassessmentmethodsaredesignedtoevaluatebroadregionalareasforpurposesofassistingfederal,state,andlocalofficialstoidentifyandprioritizeareaswheremoredetailedassessmentsarewarranted,todesignandlocatemonitoringsystems,andtohelpdevelopoptimumground-watermanagement,useandprotectionpolicies.However,someofthesemethodsareindependentofthesizeoftheareaevaluatedand,therefore,canbeusedtoevaluatetheaquifersensitivityandvulnerabilityofanyspecificarea.Manymethodsforassessingground-watersensitivityandvulnerabilityrequireinformationonsoils,andforsometypesofpotentialground-watercontaminants,soilisthemostimportantfactoraffectingcontaminantmovementandattenuationfromthelandsurfacetogroundwater.Therelativelylargesurfaceareaoftheclay-sizeparticlesinmostsoilsandthesoils''contentoforganicmatterprovidesitesfortheretardationanddegradationofcontaminants.Unfortunately,therearesignificantdifferencesinthedefinitionofsoilbetweenthesciencesofhydrogeology,engineering,andagronomy.Forthepurposesofthisguide,soilsareconsideredtobethoseunconsolidatedorganicmaterialsandsolidmineralparticlesthathavebeenderivedfromweatheringandarecharacterizedbysignificantbiologicalactivity.IntheUnitedStates,thesetypicallyincludeunconsolidatedmaterialsthatoccurtoadepthof2to3mormore.Inmanyareas,significantthicknessesofunconsolidatedmaterialsmayoccurbelowthesoil.Retardation,degradation,andotherchemicalattenuationprocessesaretypicallylessthanintheuppersoilhorizons.Theseunderlyingmaterialsmaybetheresultofdepositionalprocessesormayhaveformedinplacebylong-termweatheringprocesseswithonlylimitedbiologicalactivity.Therefore,whencompilingthedatarequiredforassessingground-watersensitivityandvulnerability,itisimportanttodistinguishbetweenthesoilzoneandtheunderlyingsedimentsandtorecognizethatthetwozoneshavesignificantlydifferenthydraulicandattenuationproperties.1.1Thisguidecoversinformationneededtoselectoneormoremethodsforassessingthesensitivityofgroundwateroraquifersandthevulnerabilityofgroundwateroraquiferstowater-qualitydegradationbyspecificcontaminants.1.2Thisguidemaynotbeall-inclusive;itoffersaseriesofoptionsanddoesnotspecifyacourseofaction.Itshouldnotbeusedasthesolecriterionorbasisofcomparison,anddoesnotreplaceprofessionaljudgment.1.3Thisguideistobeusedforevaluatingsensitivityandvulnerability......
【中国标准分类号】:P12
【国际标准分类号】:13_060_10
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Methodsoftestforpetroleumanditsproducts-Liquidpetroleumproducts-Unleadedpetrol-Determinationoforganicoxygenatecompoundsandtotalorganicallyboundoxygencontentbygaschromatographyusingcolumnswitching
【原文标准名称】:石油及其产品试验方法.液化石油产品.无铅汽油.使用柱转换气相色谱法测定有机氧饱和化合物的含量和有机束缚氧的总含量
【标准号】:BSEN13132-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-08-15
【实施或试行日期】:2000-08-15
【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】:液体燃料;柱色谱法;氧;有机化学;汽油;气相色谱法;化学分析和试验;机动车燃料;石油产品;含量测定;石油
【英文主题词】:Analysis;Automotivefuels;Chemicals;Determination;Determinationofcontent;Gaschromatography;Gasoline;Instruments;Materials;Mathematicalcalculations;Methods;Methodsofanalysis;Organiccompounds;Oxygen;Oxygencontent;Petroleumproducts;Premiumpetrol;Specification(approval);Testing;Unleaded
【摘要】:IdenticalwithIP466/2001.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:24P.;A4
【正文语种】:英语