【英文标准名称】:Textileglassreinforcedplastics-Determinationofvoidcontent-Lossonignition,mechanicaldisintegrationandstatisticalcountingmethods
【原文标准名称】:纺织玻璃纤维增强的塑料.空隙量的测定.灼烧损失、机械粉碎和统计计数法
【标准号】:BSENISO7822-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-09-15
【实施或试行日期】:1999-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;数量密度;玻璃纤维增强塑料;气孔;玻璃织物;塑料;测定
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthreemethodsforthedeterminationofthevoidcontentoftextileglassreinforcedplasticsorcomposites,ofwhichtheconstituentsareofasolidnature.1MethodA—LossonignitionThismethodisapplicabletocompositesforwhichtheeffectsofthelossonignitiontestonthematerialsareknown.Mostmatrixresinsandtextileglassfibrereinforcementsfallintothisclass.Themethodisnotapplicabletocompositesforwhichtheef-fectsofthelossonignitiontestontheresin,thereinforcement,andanyfillersareunknown.Thismayincludesiliconeresins,whichdonotbumoffcompletely,andfillersconsistingofox-ides,carbonates,etc.,whichmaygainorloseweight.Notethatseparateweightlosstestsonindividualmaterialswillusually,butnotnecessarily,givethesameresultaswhenallthematerialsarecombined.Theaccuracyofthemethodis±2,5%byvolume.2MethodB—MechanicaldieintegrationThismethodisapplicableifthecompositecanbedisintegratedinsuchaway,forexamplebycrushinginapress,thatalltheenclosedvoidsareconnectedwiththeoutsideofthecom-positematerial.Themethodisdestructiveandhaslimitedap-plicationifthematrixmaterialshowsductilebehaviourundercompression,unlessitcanbemademorebrittleinanartificialway(forexamplebycooling).Themethodisespeciallysuitablewhenthedensitiesofthecon-stituentmaterialsarenotknownornotdeterminable.Themethodneglectstheinfluenceofanyvolatileconstituentsthatcouldevaporateduringandafterdisintegration.Inthisconnection,theconditioningshallbechosenwithcare.Themethodalsodoesnottakeintoaccountanycutorexposedvoidsatthesurfaceofthesample.Theaccuracyofthemethodis±1%byvolume.3MethodC—StatisticalcountingThismethodisapplicabletocompositeshavingavoidcontentlessthanorequalto1%byvolume.
【中国标准分类号】:Q23
【国际标准分类号】:13_220_40;83_120
【页数】:16P;A4
【正文语种】:英语


【英文标准名称】:Airquality.Stationarysourceemissions.ManualmethodofdeterminationofHCI.Part2:gaseouscompoundsabsorption.
【原文标准名称】:空气质量.稳定源辐射.HCI的手工测定方法.第2部分:气体化合物吸收
【标准号】:NFX43-321-1998
【标准状态】:作废
【国别】:法国
【发布日期】:1998-07-01
【实施或试行日期】:1998-07-05
【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】:
【英文主题词】:Absorption;Absorptionmethod;Airpurification;Airquality;Chlorides;Emission;Emissionmeasurement;Exhaustgases;Filtration;Hydrochloricacid;Hydrogenchloride;Inorganic;Manual;Measuringpoints;Measuringtechniques;Refuseincineration;Samples;Samplingmethods;Stationary;Validation;Volatile
【摘要】:
【中国标准分类号】:Z50
【国际标准分类号】:13_040_40
【页数】:15P.;A4
【正文语种】:其他