QB/T 1889-1993 自行车前触闸
作者:标准资料网 时间:2024-05-21 19:59:00 浏览:9554
来源:标准资料网
基本信息
| 标准名称： | 自行车前触闸 |
| 英文名称： | Front block brakes for bicycles |
| 中标分类： |
轻工、文化与生活用品 >>
钟表、自行车、缝纫机 >>
自行车 |
| 替代情况： | 替代GB/T 3583-1983 |
| 发布部门： | 中华人民共和国轻工业部 |
| 发布日期： | 1994-01-06 |
| 实施日期： | 1994-08-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2010-01-20 |
| 归口单位： | 全国自行车标准化中心 |
| 起草单位： | 青岛市自行车工业公司，青岛台东自行车零件二厂 |
| 起草人： | 杨斌、黄幸珍、朱念华 |
| 出版社： | 中国轻工业出版社 |
| 出版日期： | 1994-08-01 |
| 页数： | 7页 |
适用范围
本标准规定了自行车前触闸(以下简称“前触闸”)的产品分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存。
本标准适用于QB1714《自行车命名和型号编制方法》中规定的轻便型、普通型、载重型自行车用前触闸。
前言
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引用标准
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所属分类： 轻工 文化与生活用品 钟表 自行车 缝纫机 自行车
【英文标准名称】:StandardTestMethodforDeterminingSeamStrengthinInflatableRestraintCushions
【原文标准名称】:可膨胀约束座垫测定接缝强度的标准试验方法
【标准号】:ASTMD5822-2008
【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】:D13.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airbag;cushion;inflatablerestraint;seamefficiency;seamfailure;seamstrength;Airbagmaterials/applications;Cushion;Inflatablerestraints;Seamstrength/integrity
【摘要】:Seamstrengthtestingisusedfordesignvalidationandforlotacceptance.Thistestmethodconstitutestheconditions,procedures,andequipmentbywhichinflatablerestraintsaretestedforseamstrengthandseamefficiency.Itisintendedtobeusedasaguidelineinestablishingawrittenpartspecificationorprint.Thespecificationoragreementofpurchaserandsuppliermaydeviatefromtheproceduresdescribedhereinwhen(basedonexperience)considerationsofequipment,cushiondesign,orotherfactorsdictateotherwise.Incasesofdisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldperformcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensfromthesamelotoffabrictobeevaluated,whichutilizealikeseamassembly(orstandardseamassembly)toachieveseaminteraction.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Ifabiasisfound,eitheritscausemustbedeterminedandcorrected,orthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.TestMethodD5822isareliabletestmethodbutprocedureswhichmayrequirespecialattentionareidentifiedintheprecisionandbiassectionofthistestmethod.1.1Thistestmethodcoversthemeasurementofseamefficiencyandthemaximumseamstrengthininflatablerestraintcushionscomposedofwovenfabricswhenaforceisappliedperpendiculartotheseam,usingagrabtest.Forevaluatingsewingthread,refertoTestMethodD204.1.2Thistestmethodisrestrictedtoseamsthatareobtainedfromaninflatablerestraintcushion.Seamsmayincludebutarenotlimitedtosewn,OPW,glued,fused(chemicallyorthermally).1.3Thistestmethodisusedwhenthemeasurementofaresistancetoaspecifiedforce,abreakingforce,aminimumelongation,oracombinationthereofarerequiredtodeterminetheseamstrength,orseamintegrityofaparticularfabricforinflatablerestraintuse.1.4Proceduresandapparatusotherthanthosestatedinthisstandardmaybeusedbyagreementbetweenpurchaserandsupplierwiththespecificdeviationsfromthestandardacknowledgedinthereport.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_01
【页数】:6P.;A4
【正文语种】:英语
Product Code:SAE J2224
Title:Identification of Truck, Trailer, and Bus Wheel Seals and Associated Packaging
Issuing Committee:Truck And Bus Wheel Committee
Scope:This SAE Information Report lists the symbols used by suppliers of truck, trailer, and bus wheel seals to identify their products. These symbols appear on seals and packaging. The purpose of this document is to provide users of truck, trailer, and bus wheel seals a means of identifying the suppliers of all such components by use of the symbology utilized by the suppliers on their components and packaging.
