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MIL-HDBK-1021-6

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MIL-HDBK-1021/6 (YD), DEPARTMENT OF DEFENSE HANDBOOK AIRFIELD PAVEMENT DESIGN FOR FROST CONDITIONS AND SUBSURFACE DRAINAGE (15 APR 2000) [SUPERSEDING DM-21.06]., This handbook presents criteria for the design of subsurface drainage systems and frost protection for airfield pavements. Included in this handbook are criteria for subsurface exploration as it relates to frost and drainage, frost protection, design alternatives for subsurface drainage, and suggested details for subsurface drainage design.

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【英文标准名称】:PlasticFilmbyInstrumentedDartDrop,TestMethodforImpactResistanceof(08.03)
【原文标准名称】:用装有测量仪器的坠落镖测量塑料薄膜耐冲击性的方法
【标准号】:ANSI/ASTMD4272-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:1997-03-05
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:箔;塑料;试验
【英文主题词】:foil;testing;plastics
【摘要】:Thistestmethoddescribesthedeterminationofthetotalenergyimpactofplasticfilmsbymeasuringthekineticenergylostbyafree-fallingdartthatpassesthroughthefilm.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThistestmethodandISO7765-2addressthesamesubjectmatter,butdifferintechnicalcontent(andresultscannotbedirectlycomparedbetweenthetwotestmethods).TheISOtestmethodcallsforadirectreadoutofenergybyusingaloadcellaspartoftheimpactorhead,whileTestMethodD4272callsforaconstantweightimpactor,thenmeasuringthetimeoftravelthroughagivendistancetogetenergyvalues.FIG.1ElementsofanInstrumentedDartDropSystem
【中国标准分类号】:G31
【国际标准分类号】:83_140_10
【页数】:
【正文语种】:英语