ASTM F449-2002(2008) 农业排水或地下水位控制用热塑塑料波纹管地下安装的标准实施规程
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【英文标准名称】:StandardPracticeforSubsurfaceInstallationofCorrugatedPolyethylenePipeforAgriculturalDrainageorWaterTableControl
【原文标准名称】:农业排水或地下水位控制用热塑塑料波纹管地下安装的标准实施规程
【标准号】:ASTMF449-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:F17.65
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Agriculturaldrainage;Corrugatedpolyethylene(PE)tube;Landdrainagepipingsystems;Undergroundinstallation--watersupply/distributionsystems;Watertablecontrol
【摘要】:1.1Thispracticeisrecommendedforandlimitedtogravityflowsubsurfacedrainagesystemsorwatertablecontrol,butnotrecommendedforsanitaryorstormsewerapplications.Proceduresareoutlinedtominimizepipedeflectionorstructuraldamageduringandaftertheinstallationprocess.Theseinstallationproceduresareinaccordancewithx201C;flexibleconduitx201D;principles.1.2ThispracticeappliestoallagriculturalsubsurfacedrainageorwatertablecontrolinstallationsusingSpecificationF405,F667orotherplasticpipe.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】:7P.;A4
【正文语种】:英语
【英文标准名称】:Clothingforprotectionagainstliquidchemicals-Determinationoftheresistanceofprotectiveclothingmaterialstopenetrationbyliquidsunderpressure
【原文标准名称】:防液体化学制品的防护服.防护服材料在压力下防液体渗透的测定
【标准号】:ISO13994-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC94
【标准类型】:()
【标准水平】:()
【中文主题词】:化合物;定义;测定;外衣;实验室试验;液体;渗透探伤;渗透力;防护服装;耐力;试验;工作服
【英文主题词】:Chemicals;Definitions;Determination;Garment;Laboratorytesting;Liquids;Penetrantflawdetection;Permability;Protectiveclothing;Resistance;Testing;Workclothes
【摘要】:ThisInternationalStandarddescribesalaboratorytestmethodthatenablesdeterminationoftheresistanceofmaterialsusedinprotectiveclothingtovisiblepenetrationundertheconditionsofcontinuousliquidcontactandpressure,forexample,clothingthatisexposedtorepeatedsplashesofliquidsprayunderpressure.Protectiveclothing"pass/fail"determinationsarebasedonvisualdetectionofliquidpenetration.Thistestmethodisnormallyusedtoevaluatethebarriereffectivenessagainstliquidsofmaterialsusedforprotectiveclothingandspecimensfromfinisheditemsofprotectiveclothing.NOTEFinisheditemsofprotectiveclothingincludegloves,armshields,aprons,suits,hoods,bootsandthelike.Thephrase"specimensfromfinisheditems"encompassesseamedandotherdiscontinuousregionsaswellastheusualcontinuousregionsofprotectiveclothingitems.Thistestmethodcanbeusedtoidentifyprotectiveclothingmaterialsandconstructionsthatlimitexposurestohazardousliquidchemicalsunderavarietyofcircumstances.Thistestmethodisparticularlyusefulfordemonstratingtheliquidhold-outcapabilitiesofmicroporousfabrics.Significantamountsofhazardousmaterialscanpermeatespecimensthatpasspenetrationtests.MoresensitiveanalysisofpermeationcanbecarriedoutusingISO6529.Penetrationresistanceofprotectiveclothingmaterialsusinglesssevereliquidchallenges,withoutpressure,canbecarriedoutusingISO6530.ISO6530usesarelativelylow-volume,short-durationliquidchallengewhichisappropriatefortreatedporousandothernon-film-basedoruncoatedmaterials.ThisInternationalStandardaddressesonlytheperformanceofmaterialsorcertainmaterialconstructions(e.g.seams)usedinprotectiveclothing.Itdoesnotaddressthedesign,overallconstructionandcomponents,orinterfacesofgarmentsorotherfactorswhichmayaffecttheoverallprotectionofferedbytheprotectiveclothing.ItisemphasizedthatthetestmethodspecifiedinthisInternationalStandarddoesnotnecessarilysimulateconditionsthatclothingmaterialsarelikelytobeexposedtoinpractice.Thereforetheuseoftestdataistoberestrictedtobroadcomparativeassessmentofsuchmaterialsaccordingtotheirliquidpenetrationresistancecharacteristics.
【中国标准分类号】:C73
【国际标准分类号】:13_340_10
【页数】:16P.;A4
【正文语种】:英语
MIL-STD-1764 (NOTICE 2), MILITARY STANDARD: WASHERS PREFERRED FOR DESIGN, LISTING OF (03 APR 1995) [NO S/S DOCUMENT]., MIL-STD-1764, DATED 31 JANUARY 1980, IS HEREBY CANCELED WITHOUT REPLACEMENT.