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Product Code:SAE AMS3797/1
Title:Webbing, Nylon, Integral Locking Slots, 5/8 (15.9) Wide, 1,000 (4448) Breaking Strength
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers one width and one strength of integral locking slot nylon webbing.【英文标准名称】:StandardTestMethodforCalibrationofaSpectroradiometerUsingaStandardSourceofIrradiance
【原文标准名称】:用标准辐射源校准分光辐射度计的标准试验方法
【标准号】:ASTMG138-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:G03.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:辐照度;分光辐射度计;试验
【英文主题词】:calibration;irradiance;spectral;spectroradiometer
【摘要】:Thismethodisintendedforusebylaboratoriesperformingcalibrationofaspectroradiometerforspectralirradiancemeasurementsusingaspectralirradiancestandardofknownspectralirradiancevaluestraceabletoanationalmetrologicallaboratorythathasparticipatedinintercomparisonsofstandardsofspectralirradiance,knownuncertaintiesandknownmeasurementgeometry.Thismethodisgeneralizedtoallowfortheuseofdifferenttypesofinputopticsprovidedthatthoseinputopticsaresuitableforthewavelengthrangeandmeasurementgeometryofthecalibration.Thismethodisgeneralizedtoallowfortheuseofdifferenttypesofmonochromatorsprovidedthattheycanbeconfiguredforabandwidth,wavelengthrange,andthroughputlevelssuitableforthecalibrationbeingperformed.Thismethodisgeneralizedtoallowfortheuseofdifferenttypesofopticalradiationdetectorsprovidedthatthespectralresponseofthedetectoroverthewavelengthrangeofthecalibrationisappropriatetothesignallevelsproducedbythemonochromator.1.1Thistestmethodcoversthecalibrationofspectroradiometersforthemeasurementofspectralirradianceusingastandardofspectralirradiancethatistraceabletoanationalmetrologicallaboratorythathasparticipatedinintercomparisonsofstandardsofspectralirradiance.1.2Thismethodisnotlimitedbytheinputopticsofthespectroradiometricsystem.However,choiceofinputopticsaffectstheoveralluncertaintyofthecalibration.1.3Thismethodisnotlimitedbythetypeofmonochromatororopticaldetectorusedinthespectroradiometersystem.Partsofthemethodmaynotapplytodeterminewhichpartsapplytothespecificspectroradiometerbeingused.Itisimportantthatthechoiceofmonochromatoranddetectorbeappropriateforthewavelengthrangeofinterestforthecalibration.Thoughthemethodgenerallyappliestophotodiodearraydetectorbasedsystems,theusershouldnotethatthesetypesofspectroradiometersoftensufferfromstraylightproblemsandhavelimiteddynamicrange.Diodearrayspectroradiometersarenotrecommendedforuseintheultravioletrangeunlessthesespecificproblemsareaddressed.1.4Thecalibrationdescribedinthismethodemploystheuseofastandardofspectralirradiance.Thestandardofspectralirradiancemusthaveknownspectralirradiancevaluesatgivenwavelengthsforaspecificinputcurrentandclearlydefinedmeasurementgeometry.Uncertaintiesmustalsobeknownforthespectralirradiancevalues.Thevaluesassignedtothisstandardmustbetraceabletoanationalmetrologicallaboratorythathasparticipatedinintercomparisonsofstandardsofspectralirradiance.Thesestandardsmaybeobtainedfromanumberofnationalstandardslaboratoriesandcommerciallaboratories.Thespectralirradiancestandardsconsistmainlyoftungstenhalogenlampswithcoiledfilamentsenclosedinaquartzenvelope,thoughothertypesoflampsareused.Standardscanbeobtainedwithcalibrationvaluescoveringallorpartofthewavelengthrangefrom200to4500nm.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N52
【国际标准分类号】:19_100
【页数】:8P.;A4
【正文语种】: