作者:标准资料网 时间:2024-05-03 03:47:23   浏览:8260   来源:标准资料网

【英文标准名称】:Physicaltestingofrubber-Determinationofindentationhardnessbymeansofpockethardnessmeters
【原文标准名称】:橡胶物理试验.第A57部分:用袖珍硬度计测定压痕硬度
【标准号】:BS903-A57-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-08-15
【实施或试行日期】:1997-08-15
【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】:天然橡胶;物理试验;硬度测量;试样制备;合成橡胶;硬化材料;再现性;硬度测试仪;试验条件;塑料和橡胶技术;硫化橡胶;硬度试验;试验设备;试样;校正;便携的;小
【英文主题词】:testing;measuringinstruments;hardnessmeasurement;indentationhardness;rubber
【摘要】:1ThisInternationalStandardspecifiesamethodforthedeterminationoftheindentationhardnessofrubberbymeansofpockethardnessmetersoftwotypes:a)theShore-typedurometer;b)ametercalibratedinIRHD.TwotypesofShore-typedurometeraredescribed;durometertypeAisusedforrubbersinthenormalhardnessrangeandtypeDforrubbersinthehighhardnessrange.2Theuseofpocketmetersisprimarilyintendedforcontrolpurposesandisnotrecommendedforspecificationpurposes.Forsuchpurposes,themethodsgiveninISO48shouldbeused.Itispossibletoincreasetheprecisionbyfixingthepockethardnesstesteronasupport.3AsimilarmethodformeasuringthehardnessofplasticsisgiveninISO868:1985,Plasticsandebonite—Determinationofindentationhardnessbymeansofadurometer(Shorehardness).NOTE1Thehardnessofrubber,asmeasuredbytheShoreAdurometerortheIRHDmeter,isnotasimplefundamentalpropertybutisacomplexresponsetoanappliedindentation.Themeasurementwilldependuponthefollowingfactors:a)theelasticmodulusoftherubber;b)theviscoelasticpropertiesoftherubber;c)thethicknessofthetestpiece;d)thegeometryoftheindentor;e)thepressureexerted;f)therateofincreaseofpressure;g)theintervalatwhichthehardnessisrecorded.Becauseofthesefactors,resultsusingaShoreAdurometershouldnotberelateddirectlytoIRHDvalues,althoughcorrelationshavebeenestablishedforsomeindividualrubbersorcompounds.
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:14P.;A4
【正文语种】:英语