作者:标准资料网 时间:2024-05-19 05:16:35   浏览:8249   来源:标准资料网

【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】:ASTMD7129-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:测定;电池;氨;电流的;分离器;试验;蓄电池组
【英文主题词】:ammonia;batteryseparator;graftedpolyolefin,nonwoven
【摘要】:Nickelmetalhydride(Ni-MH)cellscanexhibithighself-dischargerates.Nitrateimpuritiesinthepositiveelectrodecanbereducedtoammoniaonthenegativeelectrode.Thiscausesrapidself-discharge.Technicalpublicationshavereportedalinkbetweentheseparatorammoniatrappingcapabilitiesandthecellschargeretention.Graftedpolyolefinseparatorscanabsorbortraptheseimpuritiesx2014;hence,reducingself-dischargerates.Thelevelofammoniatrappingfromthismethodgivesanindicationoftheefficiencyofaseparatortotrapthesecontaminates,thushelpingabatteryselfdischarge(chargeretention).Ahighervalueshouldprovideacellwithgreaterchargeretention.1.1Thistestmethodcoversthemeasurementoftheabilityofamaterialtocaptureammonia.1.2Thistestmethodisintendedprimarilyfortestinggraftedpolyolefinmaterialsusedasabatteryseparator,althoughothermaterialscouldbetested.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K84
【国际标准分类号】:29_220_01
【页数】:2P.;A4
【正文语种】: