【英文标准名称】:StandardTestMethodforShrinkageTemperatureofLeather
【原文标准名称】:皮革收缩温度的标准试验方法
【标准号】:ASTMD6076-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D31.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:皮革;收缩;温度;试验方法
【英文主题词】:degreeoftannage;leather;shrinkage;shrinkagetemperature;tannage;
【摘要】:5.1Thistestmethodisdesignedtodeterminethetemperatureatwhichathoroughlywettedleatherspecimenexperiencesshrinkage.Inthistestmethod,shrinkageoccursasaresultofhydrothermaldenaturationofthecollagenproteinmoleculeswhichmakeupthefiberstructureoftheleather.Theshrinkagetemperatureofleatherisinfluencedbymanydifferentfactors,mostofwhichappeartoaffectthenumberandnatureofcrosslinkinginteractionsbetweenadjacentpolypeptidechainsofthecollagenproteinmolecules.Thevalueoftheshrinkagetemperatureofleatheriscommonlyusedasanindicatorofthetypeoftannageorthedegreeoftannage,orboth,ofthatparticularleather(especiallyforthemorehydrothermallystabletannagessuchaschrometannage).1.1Thistestmethodcoversthedeterminationoftheshrinkagetemperatureofalltypesofleather.Theheatingmediumiswaterwhentheshrinkagetemperatureisatorbelow98176;C.Theheatingmediumisaglycerine-watersolutionwhentheshrinkagetemperatureisabove98176;C.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y45
【国际标准分类号】:59_140_30
【页数】:3P.;A4
【正文语种】: