【英文标准名称】:StandardTestMethodforDensity,RelativeDensity(SpecificGravity),andAbsorptionofCoarseAggregate
【原文标准名称】:粗集料的密度、相对密度(比重)和吸收性的标准试验方法
【标准号】:ASTMC127-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C09.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:吸收;集料;粗集料;粗粒材料;混凝土;建筑;施工材料;相对密度;测试
【英文主题词】:absorption;aggregate;apparentdensity;apparentrelativedensity;coarseaggregate;density;relativedensity;specificgravity
【摘要】:1.1Thistestmethodcoversthedeterminationoftheaveragedensityofaquantityofcoarseaggregateparticles(notincludingthevolumeofvoidsbetweentheparticles),therelativedensity(specificgravity),andtheabsorptionofthecoarseaggregate.Dependingontheprocedureused,thedensity(kg/m3(lb/ft3))isexpressedasoven-dry(OD),saturated-surface-dry(SSD),orasapparentdensity.Likewise,relativedensity(specificgravity),adimensionlessquantity,isexpressedasOD,SSD,orasapparentrelativedensity(apparentspecificgravity).TheODdensityandODrelativedensityaredeterminedafterdryingtheaggregate.TheSSDdensity,SSDrelativedensity,andabsorptionaredeterminedaftersoakingtheaggregateinwaterforaprescribedduration.1.2Thistestmethodisusedtodeterminethedensityoftheessentiallysolidportionofalargenumberofaggregateparticlesandprovidesanaveragevaluerepresentingthesample.Distinctionismadebetweenthedensityofaggregateparticlesasdeterminedbythistestmethod,andthebulkdensityofaggregatesasdeterminedbyTestMethodC29/C29M,whichincludesthevolumeofvoidsbetweentheparticlesofaggregates.1.3Thistestmethodisnotintendedtobeusedwithlightweightaggregates.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandardforconductingthetests.ThetestresultsfordensityshallbereportedineitherSIunitsorinch-poundunits,asappropriatefortheusetobemadeoftheresults.1.5Thetextofthistestmethodreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthistestmethod.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Safetyofmachinery-Permanentmeansofaccesstomachinery-Part3:stairs,stepladdersandguard-rails-Amendment1.
【原文标准名称】:机械安全性.机械装置的永久性专用通道.第3部分:楼梯、阶梯和护栏.修改件1
【标准号】:NFE85-003/A1-2010
【标准状态】:现行
【国别】:法国
【发布日期】:2010-06-01
【实施或试行日期】:2010-06-19
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:通路;检查孔;进入通路;可访问性;建筑物面积;电气安全;设备安全;检验(质量保证);下沉;栅格;护栏;扶手;工业设施;工业机械;工业设备;工业;曲柄支托板;导程角;负荷测量;负荷;机器单元;机械;机械工程;职业安全;操作台;设备;平台;围栏;安全;防滑安全;防倾斜安全;安全距离;安全工程;机械安全性;安全要求;壁脚板;规范(验收);工作架;楼梯扶手;阶梯式梯子;楼梯;固定的;梯子;楼梯壁架;踏阶;试验;走道;工作场所安全
【英文主题词】:Access;Accessopenings;Accessroads;Accessibility;Areasofbuildings;Electricalsafety;Equipmentsafety;Examination(qualityassurance);Fall;Grilles;Guardrails;Hand-rails;Industrialfacilities;Industrialmachines;Industrialplant;Industries;Kneegripboards;Leadangle;Loadmeasurement;Loading;Machineunits;Machines;Mechanicalengineering;Occupationalsafety;Operatingstations;Plant;Platforms;Railings;Safety;Safetyagainststepping;Safetyagainsttilting;Safetydistances;Safetyengineering;Safetyofmachinery;Safetyrequirements;Skirtingboards;Specification(approval);Staging;Stairrailings;Staircaseladders;Stairs;Stationary;Stepladders;Stepledges;Steps;Testing;Walkways;Workplacesafety
【摘要】:
【中国标准分类号】:C66
【国际标准分类号】:13_110
【页数】:10P;A4
【正文语种】:其他