HG/T 2234-1991 聚碳酸脂稀溶液粘数的测定方法
作者:标准资料网 时间:2024-05-13 20:43:13 浏览:9759
来源:标准资料网
基本信息
标准名称: | 聚碳酸脂稀溶液粘数的测定方法 |
中标分类: |
化工 >>
合成材料 >>
合成树脂、塑料基础标准与通用方法 |
ICS分类: |
橡胶和塑料工业 >>
橡胶原料和塑料原料
|
发布日期: | 1900-01-01 |
实施日期: | 1992-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 9页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 化工 合成材料 合成树脂 塑料基础标准与通用方法 橡胶和塑料工业 橡胶原料和塑料原料
【英文标准名称】:Specificationforrivetsfortheattachmentoffrictionlinings
【原文标准名称】:摩擦衬垫固定用铆钉规范
【标准号】:BS3575-1963
【标准状态】:现行
【国别】:英国
【发布日期】:1963-01-09
【实施或试行日期】:1963-01-09
【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】:端头(紧固件);作标记;离合器摩擦片衬里;孔;英制;铆钉;半径;紧固件;长度;杆(紧固件);尺寸;无螺纹紧固件;制动片
【英文主题词】:radius;imperialsystem;fasteners;brakelinings;rivets;clutchlinings;shafts(fasteners);threadlessfasteners;dimensions;holes;heads(fasteners);length;marking
【摘要】:Specifiesdimensionsofhollowandsolidrivetsfortheattachmentoffrictionlinings.Eachsizeisdesignatedbyoneletterforahollowrivetortwolettersforasolidrivet.Dimensionsoftheholesintheliningsforreceptionofrivetsarealsogivenandparticularsofclenchingareshown.
【中国标准分类号】:J13
【国际标准分类号】:21_060_40
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Postalservices-Qualityofservice-Measurementoflossandsubstantialdelayinpriorityandfirstclasssinglepiecemailusingasurveyoftestletters
【原文标准名称】:飞行器燃料舱中用作爆炸抑制剂和挡板材料的纤维聚酰胺材料.试验方法
【标准号】:DDCEN/TS14773-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-09
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisdocumentspecifiesmethodsformeasuringtheleveloflossandsubstantialdelay,usingasurveyoftestletters,ofdomesticandcross-borderpriorityandfirstclasssinglepiecelettermail,collected,processedanddistributedbypostalserviceoperators.Itisimpossibleinpracticetodistinguishbetweenitemswhichwillneverarriveanditemswhichhavebeendelayedforaverylongtime.Aminimumperiodisthereforedefinedafterwhichanitemthathasbeensentshallbetreatedasifithasbeenlostorsubstantiallydelayedforthepurposesofmeasurement.Theresultingoverallfigureforlossandsubstantialdelayistobeexpressedasapercentageofthetotalpostedpriorityandfirstclasssinglepiecemail.Thisindicatordoesnotmeasurethepostaloperator’soverallperformanceinawaywhichprovidesdirectcomparisonofpostalserviceoperators,anddoesnotincludeotherserviceperformanceindicatorsotherthanthoserelatedtolossandsubstantialdelay.Accordingtothisdocument,lossandsubstantialdelayisestimatedwithinspecifiedaccuracylimits.Whentheleveloflossisverysmallitmayonlybepossibletoestimateanupperlimitforthelevelofloss.ThisdocumenthasbeendevelopedfromandiscompatiblewiththerequirementsofEN13850forthemeasurementofthetransittimeofend-to-endservicesforsinglepieceprioritymailandfirstclassmail,sothatthesamesurveymaybeusedtomeasurelossandsubstantialdelayandon-timeperformance.Thusitcomprisesasetofrequirementsforthedesignofameasuringsysteminvolvingtheselectionanddistributionoftestletterssentandreceivedbyselectedpanellists,accordingtoaspecificationthatensuresthatthetestlettersampledesignisrepresentativeoftherealmailflows.Thisdocumentrelatestothemeasurementofthesocalled“normal”servicesgiventoprivatepersons/householdsandbusinessesthatpostmailatstreetletterboxes,overthecounteratpostoffices,havepickupsattheirofficesorgivetheirmaildirectlyatpostalserviceoperators’sortingcentres.Fortechnicalreasonsthisdocumentmaynotinallpartsbesuitableforthemeasuringofverysmallvolumesofmailandforoperatorswithlimitedcoverage.Thisdocumentisnotapplicableformeasuringtheleveloflossorsubstantialdelayforlargebulkmailers’servicesandhybridmailwhichrequiredifferentmeasurementsystemsandmethodologies.Thisdocumentincludesspecificationsforthequalitycontrolandauditingofthemeasurementsystemandforthereportingoflossandsubstantialdelayofmail.
【中国标准分类号】:G33
【国际标准分类号】:03_240
【页数】:39P.;A4
【正文语种】:英语