基本信息
| 标准名称： | 轻型电动车通用技术条件 |
| 发布部门： | 山东省质量技术监督局 |
| 发布日期： | 2008-06-18 |
| 实施日期： | 2008-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2008-07-01 |
适用范围
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前言
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目录
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引用标准
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所属分类： 农业 林业 经济作物 瓜果 蔬菜种植与产品 农业 农业和林业
【英文标准名称】:StandardPracticeforDeterminingUniformityofIngredientsofConcreteFromaSingleSource
【原文标准名称】:测定单一来源混凝土配料匀细度的标准实施规程
【标准号】:ASTMC1451-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C09.94
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:混凝土;配料;同一
【英文主题词】:concretematerials;uniformity
【摘要】:Thispracticeprovidesasystematicprocedureforsamplinganddeterminingtheuniformityofuser-selectedpropertiesofingredientsofconcrete.ResultsderivedfromapplicationofthepracticearegenerallyintendedforinformationonlyandarenotrequirementsofanyexistingASTMspecificationonconcreteorconcretematerials.Aconcretematerialsspecificationmaymakereferencetothispracticeasameansofobtaininguniformityinformation,butneedstodefinethepropertiestobemeasuredandthelotsizeandsampleunittobeused.Thepracticeisapplicabletobothproducersofconcretematerialsandtoconsumersofconcretematerials,althoughdetailsofapplicationofthepracticemayvary,dependingontheintendedpurposeoftheuserofthepractice.Theprocedureisapplicabletoanypropertyofanyconcreteingredientthatcanbedescribedquantitatively,andforwhichconventionalparametricstatisticsareapplicable.Theprocedureisbasedongrabsamples,whichwilltendtoshowthemaximumamountofvariationintheselectedmaterialproperty.Theprocedurewasdevelopedforapplicationtomaterialsfromasinglesource,butitcanbeappliedtoamaterialsdeliverystreamfrommorethanonesource,dependingonthepurposesoftheuserofthepractice.Calculationsarecorrectedfortestingerror,thereforegivinganestimateoftheuniformityoftheselectedmaterialproperty.Theuniformityoftheselectedmaterialpropertyprovidestheuserwithoneindicatorofthesourcevariationoftheconcreteingredient.Althoughvariabilityinpropertiesofconcretematerialscanbeasignificantcauseofvariabilityinconcreteproperties,thispracticedoesnotpurporttogiveinformationonthisrelationship.Thispracticedoesgiveinformationonuniformityofingredientsfromwhichtheusercan,alongwithsupplementaryinformationorcorrelativetestingofconcreteproperties,developquantitativeestimatesoftheeffects.1.1Thispracticecoversaprocedurefordeterminingtheuniformityofpropertiesofconcretematerialsfromasinglesource.Itincludesrecommendationsonsampling,testing,analysisofdata,andreporting.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:5P.;A4
【正文语种】: