DIN 21920-5-1994 矿山平面图.岩相学.第5部分:煤矿
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【英文标准名称】:Mineplans-Petrography-Part5:Hardcoalmining
【原文标准名称】:矿山平面图.岩相学.第5部分:煤矿
【标准号】:DIN21920-5-1994
【标准状态】:现行
【国别】:德国
【发布日期】:1994-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:卡片;粗梳机;裂纹;表示法;表示法;草图;字体;导则;表;轴;矿山地质;层煤;符号;图形符号;图纸;设计图;岩石学;矿山测量;无烟煤开采;编写;竖井;采掘
【英文主题词】:shafts;cards;representations;graphicsymbols;petrography;plans;minesurveying;hardcoalmining;mininggeology;drawings;lettering;lists;flaws;symbols;seamcoal;guidelines;sketches;mining
【摘要】:Thedocumentappliestothefeaturesofmining-specificmapping.Itcontainstherequiredsymbols,abbreviations,andtermstobeusedforsymbolizinghardcoalandadjacentstrataonlarge-scalemining-specificmapsandplansaswellasformacropetrologicalsectionsofseams.
【中国标准分类号】:D10
【国际标准分类号】:73_020
【页数】:15P;A4
【正文语种】:德语
【英文标准名称】:StandardSpecificationforPolyethyleneFilmsMadefromMedium-DensityPolyethyleneforGeneralUseandPackagingApplications
【原文标准名称】:一般用途及包装用中等密度聚乙烯制成的聚乙烯薄膜的标准规范
【标准号】:ASTMD3981-2009a
【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】:D20.19
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:film;generaluse;medium-density;packaging;polyethylene;recycled;Packing/packagingmaterials/systems(plastics);Plasticsheetandfilm--specifications;Polyethylene(PE)sheetandfilm--specifications;Packing/packagingmaterials/systems--speci
【摘要】:1.1Thisspecificationcoversunpigmented,unsupported,sheetortubular,medium-densitypolyethylenefilms(hereafterreferredtoasfilmorfilms)fromresinshavingdensitiesintherangefrom926.0to938.0kg/m3(0.926to0.938g/cm3),inclusive,asmeasuredonmoldedplaques.1.2Thisspecificationisapplicabletohomopolymerpolyethylenebutisnotrestrictedtoit.1.3Thisspecificationisalsoapplicabletofilmsmadefromcopolymerpolyethylenecommonlyreferredtoinindustryaslow-pressurepolyethylene.1.4Thisspecificationisalsoapplicabletofilmsmadefromblendsofhomopolymersandcopolymers,includingethylene/vinyl-acetatecopolymers.1.5Thisspecificationallowsfortheuseofrecycledpolyethylenefilmorresinasfeedstock,inwholeorinpart,aslongasalltherequirementsofthisspecificationaremetandaslongasanyspecificrequirementsasgovernedbytheproducerandenduserarealsomet(seeNote1).Note18212;GuideD7209containsterminologyanddefinitionsrelatingtorecycledplastics.1.6Specialcaremustbeexercisedifthisspecificationisappliedtocoloredorpigmentedfilms.Thisspecificationdoesnotaddressspecificproblemsassociatedwithcoloring,suchas,quantityandqualityofpigmentdispersion,opticalproperties,andincreaseindensity.Theseandotherareasmustbetakenintoaccountbymutualagreementbetweenthesupplierandthepurchaser.1.7Thethicknessofthefilmscoveredbythisspecificationrangefrom25to100x03BC;m(0.001to0.004in.),inclusive.Themaximumwidthofthesheetorlay-flatis3.05m(120in.).1.8Thisspecificationdoesnotcoverorientedheat-shrinkablefilms.1.9Thisspecificationdefinesthelevelsofvariousphysicalpropertiesfromwhichspecificationsforspecificfilmsaretobedescribed.ThelevelsofphysicalpropertiesrequiredbyafilmforagivenapplicationareselectedfromSection6andthecorrespondingtables.However,Sections7.2-7.5relatingtotolerancesshallapplywithoutchangetoallfilmfallingwithinthescopeindicatedbythetitleand1.1-1.4.1.10Thisspecificationcoversdimensionaltolerances,classification,intrinsicqualityrequirements,andtestmethods.Thedimensionaltolerancesincludethickness,width,andlengthoryield.Classificationdefinestypes,classes,surfaces,andfinishes.Theintrinsicqualityrequirementsincludedensity,workmanship,impactstrength,tensilestrength,heatsealability,andodor,aswellastheclassificationpropertiesforstiffness,coefficientoffriction,opticalproperties,andsurfacetreatment.Asamplingmethodisincluded.1.11ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesaregivenforinformationonly.1.12Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section10,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note28212;ThereisnoknownISOequivalenttothisstandard.
【中国标准分类号】:A82
【国际标准分类号】:55_040
【页数】:5P.;A4
【正文语种】:英语
Product Code:SAE MA3449
Title:Bolt, Spline Drive Extended Washer Head, Reduced Head, Retainer Locked, PD Shank, AMS 5708, Metric
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available.
