SAE AMS3302 Silicone Rubber, General Purpose, 50 Durometer
时间:2024-05-16 05:12:35 来源: 标准资料网 作者：标准资料网 阅读：9009
Product Code:SAE AMS3302
Title:Silicone Rubber, General Purpose, 50 Durometer
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a silicone rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
【英文标准名称】:StandardTestMethodforMeasurementofPercentCrystallinityofPolyetheretherketone(PEEK)PolymersbyMeansofSpecularReflectanceFourierTransformInfraredSpectroscopy(R-FTIR)
【原文标准名称】:用镜反射傅里叶变换红外光谱仪测量聚醚醚酮聚合物结晶百分数的试验方法
【标准号】:ASTMF2778-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:结晶度
【英文主题词】:crystallinity;Fouriertransmissioninfraredspectroscopy(FTIR);polyetheretherketone(PEEK);specularreflectance
【摘要】:MechanicalpropertiesofPEEK,suchasstiffnessoryieldstrength,areinfluencedbythelevelofcrystallinity.ThereportedcrystallinityindexdeterminedbythistestmethodhasbeencorrelatedwithpercentcrystallinityinPEEKbywide-angleX-rayscattering(WAXS)experiments.Thistestmethodmaybeusefulforbothprocessdevelopment,processcontrol,productdevelopment,andresearch.1.1Thistestmethoddescribesthecollectionofabsorptionspectraofpolyetheretherketone(PEEK)polymerinfilledandunfilledgrades,assuppliedbyavendor,andthesubsequentcalculationofthepercentcrystallinity.Thematerialisevaluatedbyinfraredspectroscopy.Theintensity(height)oftheabsorbancepeaksisrelatedtotheamountofcrystallineregionspresentinthematerial.1.2ThistestmethodcanbeusedforPEEKconsolidatedforms,suchasinjectionmoldedparts,aslongasthesamplesareopticallyflatandsmooth.1.3TheapplicabilityoftheinfraredmethodtoindustrialandmedicalgradePEEKmaterialshasbeendemonstratedbyscientificstudies.PercentageofcrystallinityisrelatedtoR-FTIRmeasurementbycalibrationthroughwide-anglex-rayscattering(WAXS)crystallinitymeasurements.Itisanticipatedthatthistestmethod,involvingthepeakheightsnear1305cm-1and1280cm-1,willbeevaluatedinanInterlaboratoryStudy(ILS)conductedaccordingtoTestMethodE691.1.4Thistestmethoddoesnotsuggestadesiredrangeofcrystallinityforspecificapplications.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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】:英语
【英文标准名称】:Towingvehicles;mountingofelectricalconnectionsonrearcross-members
【原文标准名称】:牵引车辆.后横杠上电气连接装置的安装
【标准号】:ISO4009-1977
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】: