SAE AMS3320 Silicone (Vmq) Rubber Sheet, Glass Cloth Reinforced Heat and Weather Resistant 60-80

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Product Code:SAE AMS3320
Title:Silicone (Vmq) Rubber Sheet, Glass Cloth Reinforced Heat and Weather Resistant 60-80
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a silicone (VMQ) rubber, reinforced with glass cloth in the form of sheet. This sheet has been used typically for gaskets or seals requiring a resilient, nonporous sheet material suitable for operations from -55 to +205 degrees C (-67 to +400 degrees F), but usage is not limited to such applications. The material is resistant to deterioration by weathering and aircraft piston engine oil and remains flexible over the temperature range noted. This material is not normally suitable for use in contact with gasoline or aromatic fuels and low-aniline-point, petroleum-base fluids due to excessive swelling of the elastomer.
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基本信息
标准名称:塑料长期热暴露后时间-温度极限的测定
英文名称:Determination of time-temperature limits for plastics after prolonged exposure to heat
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 >> 塑料 >> 塑料综合
替代情况:GB/T 7142-1986
发布部门:中华人民共和国国家质量监督检验检疫总局
发布日期:2002-05-29
实施日期:2002-12-01
首发日期:1986-12-30
作废日期:1900-01-01
主管部门:中国石油和化学工业协会
提出单位:国家石油和化学工业局
归口单位:全国塑料标准化技术委员会
起草单位:广州合成材料研究院
起草人:曾新
出版社:中国标准出版社
出版日期:2002-12-01
页数:平装16开, 页数:13, 字数:22千字
适用范围

本标准规定了评价塑料经长期热暴露后耐热性能的原理和方法。本标准使用的耐热性术语适用于在空气中进行的试验。本标准不适用于试样在非空气环境下和/或施加应力下的耐热性能的评价。本标准中的塑料热老化研究的唯一根据是:热老化一定时间后会导致性能变化。所要研究的性能通常在老化温度回复到室温后进行测试。在热老化过程中,塑料的各种性能是以不同的速率变化的。能够比较各种塑料的热老化性能,判断的标准取决于所要研究的性能的类型和容许限定值。在本标准应用中,假定在引起预定性能变化所需时间的对数与相应的绝对温度倒数之间存在近似直线关系(阿累尼乌斯定律)。在研究温度范围内,被试塑料不应发生转变,特别是一级转变。

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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 塑料 塑料综合
【英文标准名称】:StandardPracticeforRubber-Preparation,Testing,Acceptance,Documentation,andUseofReferenceMaterials
【原文标准名称】:标准物质的制备、试验、验收、文献工作和使用
【标准号】:ASTMD4678-2004(2009)
【标准状态】:现行
【国别】:美国
【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】:D11.20
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:commonsourcereferencematerial(CRM);industryreferencematerial(IRM);referencematerial;Accelerators--rubber;Acceptancecriteria/testing--rubber;Acceptedreference(AR)value;Carbonblack;Carbonblacksampling;Carboncontent;Commonsourcere
【摘要】:Referencematerialsarevitallyimportantinproductandspecificationtesting,inresearchanddevelopmentwork,intechnicalservicework,andinqualitycontroloperationsintherubberandcarbonblackindustries.Theyareespeciallyvaluableforrefereepurposes.Categories,Classes,andTypesofReferenceMaterials(RM):Referencematerialsaredividedintotwocategories:IndustryReferenceMaterials(IRM)8212;Materialsthathavebeenpreparedaccordingtoaspecifiedproductionprocesstogenerateauniformlot;theparametersthatdefinethequalityofthelotareevaluatedbyaspecifiedmeasurementprogram.Common-SourceReferenceMaterials(CRM)8212;Materialsthathavebeenpreparedtobeasuniformaspossiblebutdonothaveestablishedproperty(parameter)values;theknowledgeofacommonorsinglesourceissufficientforcertainlesscriticalapplications.Industryreferencematerials(IRMs)aredividedintoadditionalclassesandtypesaccordingtothemethodofevaluatingthelotparametersandaccordingtotheproductionprocessforgeneratingthelotmaterial.Theseareexplainedmorefully(refertoAnnexA3andAnnexA4formoredetailsonthediscussioninSection3).Thefollowinglotparametersareimportantforreferencematerialuse:AcceptedReferenceValue(ARValue)8212;AnaverageIRMpropertyorparametervalueestablishedbywayofaspecifiedtestprogram.TestLotLimits(TLLimits)8212;Thesearelimitsdefinedasx00B1;3timesthestandarddeviationofindividualIRMtestresultsacrosstheentirelotforthepropertyorparameter(s)thatdefineslotquality;themeasurementsareconductedinthelaboratoryoftheorganizationproducingtheIRM.Althoughthelimitsasdefinedin3.2.3.2aregivenintermsofx00B1;3timesthestandarddeviation,therejectionofindividualportionsofthelotasbeingoutlierornon-typicalportionsinassessingthehomogeneityofthelotisdoneonthebasisofx00B1;2timestheappropriatestandarddeviation,thatis,onthebasisofa95%confidenceinterval.SeeAnnexA3andAnnexA4formoreinformationandtheevaluationprocedures.AllIRMshaveanARvalueandTLlimits;howevertheARvaluemaybeobtainedinoneoftwowaystoproduceoneoftwoclassesofARvalues:GlobalARValue8212;ThisARvalueisobtainedfromaninterlaboratorytestprogramwherethewordx201C;globalx201D;indicatesanaveragevalueacrossmanylaboratories.LocalARValue8212;ThisisanARvalueobtainedinonelaboratoryoratonelocation,usuallythelaboratoryresponsibleforpreparationofthehomogeneouslot.AnadditionalparameterisofimportanceforIRMsthathaveaglobalARvalue:Between-LaboratoryLimits(BL)8212;ThegroupoflaboratoriesthatconductinterlaboratorytestingtoestablishanAR-valuearenotequivalenttoasystemorpopulationtypicalofindustrialproductionoperationsthatusetheusualx00B1;3standarddeviationlimits.Suchproductionoperationsaresystemsthathavebeenpurgedofallassignablecausesofvariationandareinastateofx2018;statisticalcontrolx2019;