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【英文标准名称】:StandardIndexTestMethodforDeterminationofUnvegetatedRolledErosionControlProduct(RECP)AbilitytoProtectSoilfromRainSplashandAssociatedRunoffUnderBench-ScaleConditions
【原文标准名称】:测定实验室规模条件下未植草轧制侵蚀防治产品(RECP)防止因雨水冲刷造成土壤流失的能力用标准索引试验方法
【标准号】:ASTMD7101-2008
【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】:D18.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:erosioncontrol;rainfallsimulation;RECP;rollederosioncontrolproduct;sedimentandslope;Erosioncontrolmaterials/applications;Rainfall-inducederosion;RECP(rollederosioncontrolproduct);Rollederosioncontrolproduct;Sediment
【摘要】:ThisindextestmethodindicatesaunvegetatedRECPx2019;sabilitytoreducerainsplash-inducederosionunderbench-scaleconditions.ThistestmethodmayalsoassistinidentifyingphysicalattributesofRECPsthatcontributetotheirerosion-controlperformance.Thistestmethodisbench-scaleandtherefore,appropriateasanindextestforinitialindicationofproductperformance,forgeneralcomparisonofunvegetatedRECPcapabilities,andforproductqualityassurance/conformancetesting.TheresultsofthistestarenotindicativeofanRECPx2019;sactualfieldperformance.Note28212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspections/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thisindextestmethodestablishestheguidelines,requirementsandproceduresforevaluatingtheabilityofunvegetatedrollederosioncontrolproducts(RECPs)toprotectsoilsfromsimulatedrainfall(rainsplash)andminimalrunoffinducederosion.ThecriticalelementofthisprotectionistheabilityoftheunvegetatedRECPtoabsorbtheimpactforceofraindrops,therebyreducingsoilparticlelooseningthroughx201C;splashx201D;mechanisms,andlimitingtheabilityofrunofftocarrytheloosenedsoilparticles.1.2Thisindextestmethodutilizesbench-scaletestingproceduresandisnotindicativeofunvegetatedRECPperformanceinconditionstypicallyfoundinthefield.Note18212;Thevaluesobtainedwiththisbenchscaleprocedureareforinitialperformanceindication,generalproductcomparisonandconformancepurposesonly.ThesevaluesshouldnotbeusedinestimatingRECPsoilprotectioninactualfieldusewithsuchcalculationsastheUniversalSoilLossEquation(USLE)orRevisedUniversalSoilLossEquation(RUSLE)withoutverificationfromqualified,large-scaletests.1.3Thisindextestisnotintendedtoreplacefull-scalesimulationorfieldtestinginacquisitionofperformancevaluesthatarerequiredinthedesignoferosioncontrolmeasuresutilizingunvegetatedRECPs.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythisstandard.1.5.1Theproceduresusedtospecifyhowdataarecollected/recordedorcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatgenerallyshouldberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheuserx2019;sobjectives,anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisindextestmethodtoconsidersignificantdigitsusedinanalyticalmethodsforengineeringdesign.【英文标准名称】:TESTENCLOSURESANDCONDITIONS.ACCURACYINMEASUREMENTOFRELATIVEHUMIDITY.
【原文标准名称】:屏蔽和试验条件.相对湿度测量的精确性
【标准号】:NFX15-013-1973
【标准状态】:作废
【国别】:法国
【发布日期】:1973-04
【实施或试行日期】:
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数学计算;精密度;保真(度);湿度;露点湿度计;干湿度计;计算;外壳;冰;水
【英文主题词】:computation;ice;psychrometers;water;dew-pointhygrometers;enclosures;fidelity;precision;mathematicalcalculations;dewpointhygrometers;humidity
【摘要】:
【中国标准分类号】:N60
【国际标准分类号】:
【页数】:32P;A4
【正文语种】:其他