GB 4304-1984 船用工作救生衣
作者:标准资料网 时间:2024-05-13 06:12:57 浏览:8521
来源:标准资料网
基本信息
| 标准名称： | 船用工作救生衣 |
| 中标分类： |
船舶 >>
舾装设备 >>
救生设备 |
| 替代情况： | 调整为JT/T 107-1991 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1985-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 11页 |
适用范围
JT/T 107-91
前言
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目录
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引用标准
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所属分类： 船舶 舾装设备 救生设备
【英文标准名称】:StandardGuideforPreparationofPlasticsandPolymericSpecimensforMicrostructuralExamination
【原文标准名称】:微观结构检验用塑料和聚合物样品制备的标准指南
【标准号】:ASTME2015-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E04.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:磨削;安装;抛光;微观结构;塑料;制备;试样
【英文主题词】:grinding;microstructure;mounting;plastics;polishing;polymers;specimenpreparation
【摘要】:Oneofthefundamentalobjectivesofmicrostructuralexaminationofmanufacturedmaterials,especiallyplasticsandpolymers,istogainamorecompleteunderstandingoftherelationshipsbetweenthemanufacturingprocesses,themicrostructureandtextureofthematerial,andtheproduct’performance(thatis,physical,optical,ormechanicalproperties,orcombinationthereof).Undernearlyallconditions,theproperselectionandpreparationofthespecimenareofmajorimportance.Becauseofthewiderangeofavailableequipment;physical,chemical,andmechanicalpropertiesofmaterials;andthepersonalelement,specimenpreparationisanartbaseduponscientificprinciples.However,likemetallographicspecimenpreparation,certainmethods,practices,andprocedurescanbeusedtoroutinelyproduceacceptablequalityplasticandpolymericspecimensformicrostructuralexamination.Acceptablequalitymeans:4.2.1Theobservedmicrostructureisfreeofthermal,mechanical,andchemicalalterations,artifacts,damage,ordefectsresultingfromthespecimenpreparationprocess.4.2.2Asurfacefinishappropriateforthemicroscopicaltechniquestobeused.4.2.3Themicrostructureisreproduciblydisplayedforagivenspecimen.Themounting,sectioning,grinding,andpolishingproceduresinthisguidemayintroducethermal,mechanical,andchemicalstressesonthematerialbeingpreparedformicrostructuralexamination.Thus,knowledgeofthematerial’physical,mechanical,andchemicalpropertiesisofimportanceinselectingthemostappropriatetechnique(s)torevealitstruemicrostructureandtominimizethetotalnumberofstepsneededtoproducehighqualitypolishedspecimens.Thegeneralguidelinespresentedbelowwillneedtobemodifiedforeachtypeofplasticorpolymertobeprepared.TableX1.1presentsgeneralproceduresforpreparingplasticsandpolymers.TablesX1.2-X1.5presentproceduresforpreparingfourpolymerswithverydifferentmechanicalproperties.1.1Thisguidecoversrecommendedproceduresandguidelinesforthepreparationofplasticandpolymericspecimensformicrostructuralexaminationbylightandelectronmicroscopy.1.2Thisguideisapplicabletomostsemi-rigidandrigidplastics,includingengineeringplastics.Thisguideisalsoapplicabletosomenon-rigidplastics.1.3Theproceduresandguidelinespresentedinthisguidearethosewhichgenerallyproducesatisfactoryspecimens.Thisguidedoesnotdescribethevariationsintechniquesrequiredtosolveindividualproblems.1.4Manydetaileddescriptionsofgrindingandpolishingofplasticsandpolymersareavailable(1-7).1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_140_99
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:StandardSpecificationforAirPerformanceMeasurementPlenumChamberforVacuumCleaners
【原文标准名称】:真空吸尘器充气室空气动力性能测量用标准规范
【标准号】:ASTMF431-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:空气;最终制品;真空吸尘器;性能;测量
【英文主题词】:performance;measurement;enduseproducts;vacuumcleaners;air
【摘要】:
【中国标准分类号】:Y62
【国际标准分类号】:97_080
【页数】:12P;A4
【正文语种】:英语
