作者:标准资料网 时间:2024-05-08 20:04:55   浏览:8059   来源:标准资料网

【英文标准名称】:StandardTestMethodforParticleSizeRangeofPeatMaterialsforHorticulturalPurposes
【原文标准名称】:园艺用泥炭材料粒度范围的标准测试方法
【标准号】:ASTMD2977-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D18.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:施工材料;园艺;粒度;泥炭;建筑;土壤
【英文主题词】:particlesize;peat;sieving
【摘要】:Thistestmethodseparatespeatmaterialintoarbitraryfractionsbasedonparticlesize.Physicalseparationofpeatmaterialaccordingtoparticlesizeprovidesausefulindicatorofthepropertiesofapeatspecimensuchasporespace,decomposition,etc.Itprovidesameansofdeterminingtheamountofforeignmatternotinadividedstatesuchassticks,stones,andglass.Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/andthelike.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversmeasurementoftheweightpercentageoffractionsofapeatmaterialdefinedintermsofselectedrangesofscreensizes.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:19_120
【页数】:2P.;A4
【正文语种】: