ASTM D 3953-1997 皮带,扁平钢和密封条
作者:标准资料网 时间:2024-05-10 14:05:01 浏览:8098
来源:标准资料网
【英文标准名称】:Strapping,FlatSteelandSeals
【原文标准名称】:皮带,扁平钢和密封条
【标准号】:ASTMD3953-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:扁钢;包装;包装件;带条
【英文主题词】:packaging;flatsteels;packages;straps
【摘要】:
【中国标准分类号】:H46
【国际标准分类号】:55_040
【页数】:
【正文语种】:英语
【英文标准名称】:Protectiveequipmentagainstfall;safetybelts;safetyrequirements,testing
【原文标准名称】:安全器械；安全带；安全技术要求.检验
【标准号】:DIN7470-1982
【标准状态】:作废
【国别】:德国
【发布日期】:1982-01
【实施或试行日期】:1982-01-01
【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】:带条;定义;规范(审批);设计;安全工程;尺寸;作标记;采掘;安全带状装置
【英文主题词】:mining;specification(approval);dimensions;marking;design;safetyharnesses;straps;safetyengineering;definitions
【摘要】:
【中国标准分类号】:C73
【国际标准分类号】:0640
【页数】:6P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminingSolarorPhotopicReflectance,Transmittance,andAbsorptanceofMaterialsUsingaLargeDiameterIntegratingSphere
【原文标准名称】:用大直经积分球测定材料的太阳能或光反射性,透明性和吸收性的试验方法
【标准号】:ASTME1175-1987(2003)
【标准状态】:现行
【国别】:
【发布日期】:1987
【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】:E44.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;材料;太阳能;直径;反射;吸收;传输
【英文主题词】:
【摘要】:Toovercometheinadequaciesofconventionalspectrophotometricmeasurementtechniqueswhennonhomogeneousmaterialsaremeasured,alargeintegratingspheremaybeused.5,6Sincethebeamemployedinsuchspheresislargeincomparisontothedisparatiesofthematerialsbeingtested,thenonisotropicnatureofthespecimenbeingmeasuredisessentiallyaveraged,orintegratedoutofthemeasurement,inasingleexperimentaldetermination.Solarandphotopicopticalpropertiesmaybemeasuredeitherwithmonofunctionalspheresindividuallytailoredforthemeasurementofeithertransmittance6orreflectance,ormaybemeasuredwithasinglemultifunctionalspherethatisemployedtomeasurebothtransmittanceandreflectance.5Amultifunctionalsphereisusedformakingtotalsolartransmittancemeasurementsinbothadirectional-hemisphericalandadirectional-directionalmode.Thesolarabsorptancecanbeevaluatedinasinglemeasurementasoneminusthesumofthedirectionalhemisphericalreflectanceandtransmittance.Whenasampleatthecenterofthesphereissupportedbyitsrim,thesumofthereflectanceandtransmittancecanbemeasuredasafunctionoftheangleofincidence.Thesolarabsorptanceisthenoneminusthemeasuredabsorptanceplustransmittance.1.1Thistestmethodcoversthemeasurementoftheabsolutetotalsolarorphotopicreflectance,transmittance,orabsorptanceofmaterialsandsurfaces.Althoughthereareseveralapplicabletestmethodsemployedfordeterminingtheopticalpropertiesofmaterials,theyaregenerallyusefulonlyforflat,homogeneous,isotropicspecimens.Materialsthatarepatterned,textured,corrugated,orareofunusualsizecannotbemeasuredaccuratelyusingconventionalspectrophotometrictechniques,orrequirenumerousmeasurementstoobtainarelevantopticalvalue.Thepurposeofthistestmethodistoprovideameansformakingaccurateopticalpropertymeasurementsofspatiallynonuniformmaterials.1.2Thistestmethodisapplicabletolargespecimensofmaterialshavingbothspecularanddiffuseopticalproperties.Itisparticularlysuitedtothemeasurementofthereflectanceofopaquematerialsandthereflectanceandtransmittanceofsemitransparentmaterialsincludingcorrugatedfiber-reinforcedplastic,compositetransparentandtranslucentsamples,heavilytexturedsurfaces,andnonhomogeneousmaterialssuchaswovenwood,windowblinds,draperies,etc.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Forspecificsafetyhazards,seeNote.)
【中国标准分类号】:F12
【国际标准分类号】:17_180_20(COLOURSANDMEASUREMENTOFLIGHT)
【页数】:4P.;A4
【正文语种】:
