BS EN ISO 8130-4-2010 粉末涂料.爆炸下限值的计算
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【英文标准名称】:Coatingpowders.Calculationoflowerexplosionlimit
【原文标准名称】:粉末涂料.爆炸下限值的计算
【标准号】:BSENISO8130-4-2010
【标准状态】:现行
【国别】:英国
【发布日期】:1993-04-15
【实施或试行日期】:1993-04-15
【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】:
【英文主题词】:Air;Airquality;Calculationformula;Calorificvalues;Cloth;Coatingmaterials;Concentration;Conglomerates;Definitions;Electrostatic;Explosionindex;Explosionlimits;Explosions;Ignition;Ignitiontest;Interpretations;Limitsofinflammability;Mathematicalcalculations;Methods;Paints;Particulatematerials;Powder;Powdercoatings;Samplingmethods;Teststandards;Testing;Varnishes
【摘要】:ThispartofISO8130specifiesamethodforthecalculationofthelowerexplosionlimitofacoatingpowder,i.e.theminimumconcentrationofthecoatingpowderinairwhichwillformanexplosivemixture.Itisbasedontheknowledgeofthegrosscalorificvalueoftheproduct,asdeterminedbythemethoddescribedinISO1928,oronthegrosscalorificvaluesoftheconstituentsoftheproduct.Reliablemethodsforthemeasurementofthisquantityrequiretheuseofspecialapparatuswhichmaynotbereadilyavailable,AmethodfordeterminingtheexplosionindicesofcombustibledustsinairisgiveninISO6184-1.Thismethodis,however,veryintricate,requiresconsiderableexpertiseandisexpensive.Thecalculationmethodleadstolowerexplosionlimitswhichhavebeenprovedinpracticetobesatisfactorywhenappliedtocoatingapplicationplants.NOTE1Withpowdersthatarenotflammable,suchasthoseofthepoly(vinylchloride)type,themethodmayneverthelessgiveavalueforthelowerexplosionlimitinair.Thus,anyunderestimationofanexplosionriskiseffectivelyavoided.NOTE2ThecalculationusedinthisInternationalStandardisbasedonthefollowingassumptions:a)thatmaterialexistsintheformofamoleculardispersion;b)thatthereiscompletecombustionofthemeterialtothehighestoxidationlevel;c)thatthereisanadiabatictypeofreaction;d)thattheflametemperatureforthecompositionwithwhichtheminimumconcentrationforexplosioninairisattainedis1000°C.
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:10P.;A4
【正文语种】:英语
【原文标准名称】:粉末涂料.爆炸下限值的计算
【标准号】:BSENISO8130-4-2010
【标准状态】:现行
【国别】:英国
【发布日期】:1993-04-15
【实施或试行日期】:1993-04-15
【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】:
【英文主题词】:Air;Airquality;Calculationformula;Calorificvalues;Cloth;Coatingmaterials;Concentration;Conglomerates;Definitions;Electrostatic;Explosionindex;Explosionlimits;Explosions;Ignition;Ignitiontest;Interpretations;Limitsofinflammability;Mathematicalcalculations;Methods;Paints;Particulatematerials;Powder;Powdercoatings;Samplingmethods;Teststandards;Testing;Varnishes
【摘要】:ThispartofISO8130specifiesamethodforthecalculationofthelowerexplosionlimitofacoatingpowder,i.e.theminimumconcentrationofthecoatingpowderinairwhichwillformanexplosivemixture.Itisbasedontheknowledgeofthegrosscalorificvalueoftheproduct,asdeterminedbythemethoddescribedinISO1928,oronthegrosscalorificvaluesoftheconstituentsoftheproduct.Reliablemethodsforthemeasurementofthisquantityrequiretheuseofspecialapparatuswhichmaynotbereadilyavailable,AmethodfordeterminingtheexplosionindicesofcombustibledustsinairisgiveninISO6184-1.Thismethodis,however,veryintricate,requiresconsiderableexpertiseandisexpensive.Thecalculationmethodleadstolowerexplosionlimitswhichhavebeenprovedinpracticetobesatisfactorywhenappliedtocoatingapplicationplants.NOTE1Withpowdersthatarenotflammable,suchasthoseofthepoly(vinylchloride)type,themethodmayneverthelessgiveavalueforthelowerexplosionlimitinair.Thus,anyunderestimationofanexplosionriskiseffectivelyavoided.NOTE2ThecalculationusedinthisInternationalStandardisbasedonthefollowingassumptions:a)thatmaterialexistsintheformofamoleculardispersion;b)thatthereiscompletecombustionofthemeterialtothehighestoxidationlevel;c)thatthereisanadiabatictypeofreaction;d)thattheflametemperatureforthecompositionwithwhichtheminimumconcentrationforexplosioninairisattainedis1000°C.
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:10P.;A4
【正文语种】:英语
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