ASTM F14-1980(2005) 标准玻璃金属胎圈密封胶的生产和试验标准实施规程

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【英文标准名称】:StandardPracticeforMakingandTestingReferenceGlass-MetalBead-Seal
【原文标准名称】:标准玻璃金属胎圈密封胶的生产和试验标准实施规程
【标准号】:ASTMF14-1980(2005)
【标准状态】:现行
【国别】:
【发布日期】:1980
【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】:C14.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:玻璃;密封件;电子工程;金属;试验;生产;工艺
【英文主题词】:beadseals;seals-electronicapplications;bead-seals,making/testing(forthermalexpansion/contractionmismatch);electronicmaterials/applications;glass-metalbead-seal
【摘要】:Thetermreferenceasemployedinthispracticeimpliesthatboththeglassandthemetalofthereferenceglass-metalsealwillbeastandardreferencematerialsuchasthosesuppliedforotherphysicaltestsbytheNationalInstituteofStandardsandTechnology,orasecondaryreferencematerialwhosesealingcharacteristicshavebeendeterminedbysealstoastandardreferencematerial(seeNISTSpecialPublication260).4UntilstandardreferencematerialsforsealsareestablishedbytheNIST,secondaryreferencematerialsmaybeagreeduponbetweenproduceranduser.51.1Thispracticecoversproceduresforpreparingandtestingreferenceglass-to-metalbead-sealsfordeterminingthemagnitudeofthermalexpansion(orcontraction)mismatchbetweentheglassandmetal.TestsareinaccordancewithmethodF218().1.2Thispracticeappliestoallglass-metalcombinations,establishedorexperimental,particularlythoseintendedforelectroniccomponents.1.3Thepracticallimitofthetestindevisingmismatchisapproximately300ppm,abovewhichtheglassislikelytofracture.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:29_080_20
【页数】:4P.;A4
【正文语种】: