【英文标准名称】:Methodsoftestformasonryunits-Determinationofvolumeandpercentageofvoidsandnetvolumeofclayandcalciumsilicatemasonryunitsbysandfilling
【原文标准名称】:圬工砌块的试验方法.用水砂充填法测定粘土和硅酸盐钙砌块的体积、空隙百分率和净体积
【标准号】:BSEN772-9-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-12-15
【实施或试行日期】:1998-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:砖;砌砖工作;硅酸盐砖;建筑;施工材料;测定;孔;解释;砖石工程;数学计算;净值;孔数;百分率;穿孔;砂;规范;试样;测试;测试装置;体积
【英文主题词】:Bricks;Brickwork;Calciumsilicatebricks;Construction;Constructionmaterials;Determination;Determinations;Holes;Interpretations;Masonry;Mathematicalcalculations;NetVolume;Numberofholes;Percentage;Punchings;Sand;Specification;Testspecimens;Testing;Testingdevices;Volume
【摘要】:ThisEuropeanStandardspecifiesamethodofdeterminingthevolumeandpercentageofvoidsandnetvolumeofcalciumsilicatemasonryunitscontainingcells,frogsandholes.
【中国标准分类号】:P24
【国际标准分类号】:91_100_15
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforStrategiesforSurfaceSamplingofMetalsandMetalloidsforWorkerProtection
【原文标准名称】:工人保护用金属和类金属制品的表面取样策略标准指南
【标准号】:ASTMD7659-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D22.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:occupationalhealth;occupationalsafety;surfacesampling;surfacesamplingstrategies;workerprotection;workplaceprotection
【摘要】:Thisguidedescribesapproacheswhichcanbeusedtodeterminesurfacesamplingstrategiesbeforeanyactualsurfacesamplingoccurs.Thestrategyselectionprocessneedstoconsideranumberoffactors,including,butnotlimitedto,purposeforsampling,fitnessofthesamplingstrategyforthatpurpose,dataqualityobjectivesandhowthedatawillbeused,abilitytoexecutetheselectedstrategy,andabilityoftheanalyticallaboratory(fixed-siteorin-field)toanalyzethesamplesoncetheyarecollected.Forthepurposesofsampling,andforthematerialssampled,surfacesamplingstrategiesaremattersofchoice.Workplacesamplingmaybeperformedforsingleormultiplepurposes.Conflictsmayarisewhenasinglesamplingstrategyisexpectedtosatisfymultiplepurposes.Limitationsofcost,space,powerrequirements,equipment,personnel,andanalyticalmethodsneedtobeconsideredtoarriveatanoptimumstrategyforeachpurpose.Astrategyintendedtosatisfymultiplepurposeswilltypicallybeacompromiseamongseveralalternatives,andwilltypicallynotbeoptimalforanyonepurpose.Thepurposeorpurposesforsamplingshouldbeexplicitlystatedbeforeasamplingstrategyisselected.Goodpractice,regulatoryandlegalrequirements,costofthesamplingprogram,andtheusefulnessoftheresultsmaybemarkedlydifferentfordifferentpurposesofsampling.Thisguideisintendedforthosewhoarepreparingtoevaluateaworkplaceenvironmentbycollectingsamplesofmetalsormetalloidsonsurfaces,orwhowishtoobtainanunderstandingofwhatinformationcanbeobtainedbysuchsampling.Thisguidecannottaketheplaceofsoundprofessionaljudgmentindevelopmentandexecutionofanysamplingstrategy.Inmostinstances,astrategybasedonastandardpracticeormethodwillneedtobeadjustedduetoconditionsencounteredinthefield.Documentationofanyprofessionaljudgmentsappliedtodevelopmentorexecutionofasamplingstrategyisessential.Thisguideshouldnotbeusedasastand-alonedocumenttoevaluateanygivencontaminantorchemicalspecies.Thesurfacesamplingtechniquesdescribedinthisguideareintendedforthedeterminationofmetalsandmetalloidsonsurfaces,orforthedeterminationofloadingsofembeddedmetallicresiduesinsurfacecoverings.Thesetechniquesmaynotaccuratelyreflectthetransferabilityorbioavailabilityofsuchresiduesbywayofdermalcontactorinhalationofresuspendedrespirabledust.1.1Thisguideprovidescriteriatobeusedindefiningstrategiesforsamplingformetalsandmetalloidsonsurfacesforworkplacehealthandsafetymonitoringorevaluation.1.2Guidanceprovidedbythisstandardisintendedforsamplingofmetalsandmetalloidsonsurfacesforsubsequentanalysisusingmethodssuchasatomicspectrometry,massspectrometry,X-rayfluorescence,ormolecularfluorescence.Guidanceforevaluationofdataaftersampleanalysisisincluded.1.3Samplingforvolatileorganometallicspecies(forexample,trimethyltin)isnotwithinthescopeofthisguide.1.4Samplingtodeterminelevelsofmetalsormetalloidsontheskinisnotwithinthescopeofthisguide.1.5Samplingforairborneparticulatematterisnotwithinthescopeofthisguide.GuideE1370providesinformationonairsamplingstrategies.1.6Wheresurfacesamplingisprescribedbylaworregulation,thisguideisnotintendedtotaketheplaceofanyrequirementsthatmaybespecifiedinsuchlaworregulation.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8