MIL-HDBK-299, MILITARY HANDBOOK: CABLE COMPARISON HANDBOOK DATA PERTAINING TO ELECTRICAL SHIPBOARD CABLE (3 APR 1989)., This document supplements departmental manuals, directives, military standards, and so forth, and provides basic information on shipboard cables.【英文标准名称】:StandardTestMethodforTack-FreeTimeofElastomericSealants
【原文标准名称】:弹性密封胶消粘时间的标准试验方法
【标准号】:ASTMC679-2003
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:C24.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:sealants;tack;tack-free
【摘要】:Thetack-freetimeisameasureofthesurfacecuretimeandmaygenerallybecorrelatedtoavarietyofusefulparameterssuchasthetimeintervalbeforethesealant(1)resistsdamagebytouchorlightsurfacecontact,(2)resistsjob-siteorairbornedirtpick-up,(3)resistsimpingingrainfall.Thetack-freetimeissometimesusedasanon-the-jobqualityassurancetest.Aqualityproductthatisconsistentandreproduciblewillgenerallyfallwithinamaximumandminimumtack-freetime.Thistestfortack-freetimecanbeusedatanytemperatureandhumidity.Itisimportantthatifasealantwillbeusedinaclimatequitedifferentthanthestandardconditionscalledoutinthistestmethod,thenthoseconditionsbeusedtotestthesealant.1.1Thistestmethodcoversaprocedureforthedeterminationofthetack-freetimepropertyofsingle-andmulti-componentelastomericsealantscommonlyusedforsealing,caulking,andglazinginbuildingsandrelatedconstruction.1.2Thistestmethodisapplicabletoself-levelingandnon-saggradesofsealant.Sealantsrequiringslightheatingtofacilitateextrusionfromthecartridgeorgunarealsodescribedbythistestmethod.Note18212;SeeSpecificationC920fortypeandgradedefinitions.1.3Thevaluesstatedinmetricunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note28212;Currently,thereisnoISOstandardsimilartothisspecification.
【中国标准分类号】:
【国际标准分类号】:83_060;91_100_50
【页数】:3P.;A4
【正文语种】: