ASTM D6657-2008 测定湿铬鞣革的pH值的标准试验方法

作者:标准资料网 时间:2024-05-17 18:54:49  浏览:9957   来源:标准资料网

【英文标准名称】:StandardTestMethodforpHofWetBlue
【原文标准名称】:测定湿铬鞣革的pH值的标准试验方法
【标准号】:ASTMD6657-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D31.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acacidity;alkalinity;bluestock;DeltapH;pH;pHdifference;wetblue;wetwhite;pH;Wetblue
【摘要】:ThistestmethodisdesignedtomeasurethepHofadistilled-waterextractofwetblue.Thisisconsideredtobeameasureoftheacidityoralkalinityofthewetblue.Excessiveacidityoralkalinitymayhaveadeleteriouseffectontheagingcharacteristicsofwetblueandtheleathermadefromit.Thistestmethodissuitablefordevelopment,control,andserviceevaluationofwetblue.1.1ThistestmethodcoversthedeterminationofthepHofalltypesofwetblueandwetwhite.1.2ForpHofwetwhite,theprocedureisidentical,substitutewetwhiteforwetblueinthestandardmethod.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y45
【国际标准分类号】:59_140_10
【页数】:2P.;A4
【正文语种】:英语