NF S91-124-1999 牙钻手柄.牙科用低压电动机
作者:标准资料网 时间:2024-05-19 09:01:47 浏览:9833
来源:标准资料网
【英文标准名称】:Dentalhandpieces.Dentallow-voltageelectricalmotors.
【原文标准名称】:牙钻手柄.牙科用低压电动机
【标准号】:NFS91-124-1999
【标准状态】:作废
【国别】:法国
【发布日期】:1999-07-01
【实施或试行日期】:1999-07-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:牙科器械;超低电压;低电压;低压技术;低压电器;特点;牙科学;牙钻手柄;技术数据单;包装件;作标记;电动机;电动机;规范(验收);分类;使用说明;合格试验;分类系统;超低压设备
【英文主题词】:Classification;Classificationsystems;Dentalhandpieces;Dentalinstruments;Dentistry;Electricmotors;Extralow-voltageequipment;Extra-lowvoltage;Features;Instructionsforuse;Lowvoltage;Low-voltageequipment;Low-voltagetechnology;Marking;Motors;Packages;Qualificationtests;Specification(approval);Specifications;Technicaldatasheets
【摘要】:
【中国标准分类号】:C33
【国际标准分类号】:11_060_25;29_160_30
【页数】:19P.;A4
【正文语种】:其他
【英文标准名称】:Textileglass-Yarns-Determinationofbreakingforceandbreakingelongation
【原文标准名称】:纺织玻璃纤维纱线断裂强力和断裂伸长的测定
【标准号】:ISO3341-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;断裂伸长;定义;纱;抗断裂强度;断裂荷载;扯裂力;试验;试验;纺织玻璃纤维;抗拉试验
【英文主题词】:Breakingload;Breakingstrength;Definitions;Determination;Elongationatfracture;Tear-outforces;Tensiletesting;Testing;Tests;Textileglass;Yarn
【摘要】:1ThisInternationalStandardspecifiesamethodforthedeterminationofthetensilebreakingforceandelonga-tionatbreakofglassyarnstakenfrompackages.2Themethodisapplicabletovarioustypesofglassyarn(single,folded,cabled,strands,structureswithouttwist,rovings,etc.).Itisbasicallyintendedforsingle,foldedandcabledglassyarnshavingadiameteroflessthan2mm,oralineardensitylowerthan2000tex,takenfrompackages.Heavieryarnsmaybealsotestedprovidingthetestconditionsareacceptabletoallinterestedparties.3Themethodisnotapplicabletoglassyarnswhich,inequilibriumwiththestandardatmosphereandunderapre-tensionof5mN/tex,areelongatedbymorethan0,5%.Suchyarnscanbetestedusingalowerpre-tension(forexample2,5mN/texor1mN/tex),acceptabletoallinterestedparties.Thiswouldoccurmainlywhendealingwithsta-ple-fibreyarns.NOTE1Thoughthedeterminationmayberunonbeamedyarnoronyarnstakenfromfabrics,theresultsmustbeconsideredasindicativeonly.NOTE2Thistestmethodisprimarilyintendedformaterialcharacterizationandqualitycontrol.Fibre-to-fibreabrasionandotherfactorssuchasinsufficientlyuniformtension(catenary)willincreasevariabilityandgeneratelowtestvalues.Thiswillconse-quentlyimpedeaccuratecorrelationbetweenperformanceoftheyarnsandenduseapplications.Extremecareshouldbetakeninconsideringthismethodforspecificationpurposes.NOTE3ThoughthisInternationalStandardprovidesthepossibilityofdeterminingtheelongationatbreak,thispracticeisnotrecommended,however.Indeed,acorrectassessmentoftheelongationwillonlybeobtainedusinganextensometer;itwillnotbeobtainedbymeasuringthedistancetraversedbythemovingclamp.Ontheotherhand,experienceshowsthattheuseofanex-tensometerisquitedelicateandoftencausesdamagetothespecimen.
【中国标准分类号】:W50
【国际标准分类号】:59_100_10
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforRecycledPolystyreneMoldingandExtrusionMaterials
【原文标准名称】:回收聚苯乙烯模制和挤压材料的标准规范
【标准号】:ASTMD5676-1999
【标准状态】:作废
【国别】:
【发布日期】:1999
【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】:D20.15
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:回收塑料;回收聚苯乙烯模制材料;挤制化合物;挤压材料;模制;聚苯乙烯;材料
【英文主题词】:polystyrene;recycled;specification
【摘要】:1.1Thisspecificationcoversonlyrecycledpost-consumer,orpost-consumerorindustrial/virginblendedpolystyrenematerials,bothcrystalandrubbermodified,suitableformoldingandextrusion.1.2Thisspecificationisintendedasameans
【中国标准分类号】:G32
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:
