EN 1912-2012 结构木材.强度等级.目测等级评定及分类

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【英文标准名称】:Structuraltimber-Strengthclasses-Assignmentofvisualgradesandspecies;GermanversionEN1912:2012
【原文标准名称】:结构木材.强度等级.目测等级评定及分类
【标准号】:EN1912-2012
【标准状态】:现行
【国别】:
【发布日期】:2012-06-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bulkdensity;Classification;Classificationsystems;Classifications;Construction;Constructionmaterials;Coordination;Definitions;Hardwoods;Softwoods;Solidwood;Sortingclasses;Specification(approval);Strengthclass;Strengthofmaterials;Structuraltimber;Timberconstruction;Tradename;Typeoftimber;Visual;Wood
【摘要】:
【中国标准分类号】:B69
【国际标准分类号】:79_040
【页数】:19P;A4
【正文语种】:英语


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【英文标准名称】:Textilemachinery-Noisetestcode-Part6:Fabricmanufacturingmachinery(ISO9902-6:2001+Amd1:2009);GermanversionENISO9902-6:2001+A1:2009)
【原文标准名称】:纺织机械.噪声测试标准.第6部分:织造机械(ISO9902-6:2001+修改件1:2009),修改件ENISO9902-6:2001+A1:2009)
【标准号】:ENISO9902-6-2009
【标准状态】:现行
【国别】:
【发布日期】:2009-12
【实施或试行日期】:2009-12-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Area;Checkpoint;Cloth;Corrrections;Crosswindingmachines;Determination;Envelopingsurfacemethods;Externalnoise;Fixings;Flyerframes;Handling;Installations;Interpretations;Knittingmachines;Layout;Machines;Measurement;Measurementconditions;Measurementofairbornenoise;Measuringdistances;Measuringincertainity;Measuringinstruments;Measuringobjects;Measuringresults;Measuringrooms;Measuringsurfaces;Measuringtechniques;Mechanicalengineering;Mobile;Noise;Noisecharacteristic;Noisecontrol(acoustic);Noiseemissions;Noise(environmental);Noisemeasurements;Operatingconditions;Operatingstations;Plantsforcleaning;Position;Precision;Ratings;Referencecubes;Ringframes;Roomcorrections;Rooms;Soundabsorption;Soundabsorptioncoefficient;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundpressurelevel;Soundsources;Specification(approval);Tearingmachines;Testreport;Testing;Textilemachinery;Typeofmachine;Uncertainties;Vibrationengineering;Warpingframes;Weavingmachinery;Workingnoises;Zonesofreach
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforSpecificSurfaceAreaofAluminaorQuartzbyNitrogenAdsorption
【原文标准名称】:用氮吸附法测定氧化铝和石英表面特性的试验方法
【标准号】:ASTMC1069-1986(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1986
【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】:C21.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:陶瓷;试验;矾土;石英;表面;表面吸附;氮
【英文主题词】:alumina;nitrogenadsorption;particlesize;quartz
【摘要】:Bothsellersandpurchasersofaluminaandquartzwillfindthetestmethodusefultodeterminethespecificsurfaceareaandindirectlyasameasureoftheparticlesizeformaterialspecifications,manufacturingcontrol,andresearchanddevelopment.1.1Thistestmethodcoversthedeterminationofthespecificsurfaceareaofaluminasandsilicasusedinthemanufactureofceramics.Thetestmethodisageneralonepermittingtheuseofanymoderncommercialnitrogenadsorptionapparatusbutstrictlydefiningtheoutgassingprocedure.CalculationsarebasedontheBrunauer-Emmett-Teller(BET)equation.1.2Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q65
【国际标准分类号】:81_060_10
【页数】:2P.;A4
【正文语种】: