ZB N 72018-1986 塑料简支梁冲击试验杨

上一篇: ZB N 71010-1990 里氏硬度计技术条件
下一篇: ZB N 72001-1985 纸板戳穿强度测定仪

【英文标准名称】:StandardPracticeforCalibrationoftheJamesStaticCoefficientofFrictionMachine
【原文标准名称】:摩擦机的James静态系数校正的标准操作规程
【标准号】:ASTMD6205-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D21.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:底部;校正;皮革制品;参考面;鞋底;静态摩擦力
【英文主题词】:Borcoboard;controlpolish;JamesMachine;referencesurface;SCOFchart;slipresistance;standardreferenceleather;standardtestsequence;staticcoefficientoffriction
【摘要】:ThispracticeisusedtocalibratetheJamesMachinefordeterminationofstaticcoefficientoffrictionofpolishsurfacesinaccordancewithTestMethodD2047.OverconsiderabletimeandrepeatedusetheJamesMachinemaytendtomechanicalmisalignment,givingself-evident,anomalousreadings.Theperiodicaccumulationandcomparisonofdatageneratedbythispracticeprovidesanindicationofwhenthemachineisnolongerwithinthecalibrationlimitsandcannolongerbeexpectedtoprovideaccurateandreliabledata.Semi-automatedJamesmachinesmayperformaninternalcalibration/alignmenttest.Theseautomatedtestsshouldberoutinelyrunperthemanufacturerrsquo;recommendation.Iftherepeatabilitytestsofthispracticeindicatethatthemachineisoutofcalibration,themanufacturershouldbecontactedandhissuggestionsfollowed.Unqualifieddisassembly,modification,oradjustmentmayvoidtheinstrumentwarranty.1.1ThispracticecoversthetestingoftheJamesMachineforrepeatabilityofstaticcoefficientoffriction,relativetoastandardreferenceinterfaceconsistingoftheworkingsurfacesofBorcoboardandstandardleathershoesolematerial,oracontrolpolishfilmandstandardleathershoematerial.ThepracticeprovidesbasisdataonthestabilityoftheJamesMachinetoensureaccuratestaticcoefficientoffrictiondeterminationsovertimeandrepeateduseandfordeterminingiftheJamesMachineismechanicallycalibratedandproperlyaligned.1.2ThispracticeiswrittenspecificallyforJamesMachineswithmanualormotorizedtesttabletransport.VariationsofthispracticeforthecalibrationofversionsofJamesMachineswhicharesemi-automatedareobvious.Calibrationpracticessuggestedbythemanufacturerofsemi-automaticJamesMachinesshouldbefollowedinpreferencetothispractice.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J50
【国际标准分类号】:19_060;61_060
【页数】:6P.;A4
【正文语种】:


MIL-T-24270T (SUPPLEMENT 1), MILITARY SPECIFICATION: THERMOWELLS FOR THERMOMETERS & ELECTRICAL TEMPERATURE SENSORS GENERAL SPECIFICATION FOR (02 SEP 1983)., This supplement forms a part of MIL-T-24207, dated 02 September, 1983, and is approved for use by all Departments and Agencies of the Department of Defense.