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【英文标准名称】:StandardTestMethodforDeterminationofAmmoniaTrappinginaGraftedBatterySeparator
【原文标准名称】:接合蓄电池隔板中氨的测定的标准试验方法
【标准号】:ASTMD7129-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D09.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ammonia;batteryseparator;graftedpolyolefin,nonwoven;Ammonia;Batteryseparator
【摘要】:Nickelmetalhydride(Ni-MH)cells/batteriescanexhibithighself-dischargerates.Nitrateimpuritiesinthepositiveelectrodecanbereducedtoammoniaonthenegativeelectrode.Thiscausesrapidself-discharge.Technicalpublicationshavereportedalinkbetweentheseparatorammoniatrappingcapabilitiesandthecellschargeretention.Graftedpolyolefinseparatorscanabsorbortraptheseimpuritiesx2014;hence,reducingself-dischargerates.Thelevelofammoniatrappingfromthismethodgivesanindicationoftheefficiencyofaseparatortotrapthesecontaminates,thushelpingabatteryselfdischarge(chargeretention).Ahighervalueshouldallowacelltohavegreaterchargeretention.1.1Thistestmethodcoversthemeasurementoftheabilityofamaterialtocaptureammonia.1.2Thistestmethodisintendedprimarilyfortestinggraftedpolyolefinmaterialsusedasabatteryseparator,althoughothermaterialscouldbetested.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K84
【国际标准分类号】:29_220_01
【页数】:3P.;A4
【正文语种】:英语