SAE AMS3656 Polytetrafluoroethylene (PTFE) Extrusions, Normal Strength, As Sintered
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来源:标准资料网
Product Code:SAE AMS3656
Title:Polytetrafluoroethylene (PTFE) Extrusions, Normal Strength, As Sintered
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers a virgin, unfilled polytetrafluoroethylene (PTFE) in the form of extruded and sintered rods, tubes, and profiles.
【英文标准名称】:Automaticgasburnercontrolsystemsforgasburnesandgasburningapplianceswithorwithoutfans.
【原文标准名称】:有扇风机或无扇风机的气体燃烧和燃气器具的自动燃烧器控制系统
【标准号】:NFD36-510-1994
【标准状态】:作废
【国别】:法国
【发布日期】:1994-04-01
【实施或试行日期】:1994-04-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:Q82
【国际标准分类号】:27_060_20
【页数】:41P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforDeterminingMolecularWeightDistributionandMolecularWeightAveragesofPolyolefinsbyHighTemperatureGelPermeationChromatography
【原文标准名称】:高温凝胶渗透色谱法测定聚烯烃分子量分布和平均分子量的标准试验方法
【标准号】:ASTMD6474-1999(2006)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:平均分子量;分子量分布;尺寸排除色谱法;凝胶渗透色谱法;聚烯烃
【英文主题词】:gelpermeationchromatography;molecularweightaverage;molecularweightdistribution;polyolefin;sizeexclusionchromatography
【摘要】:Thistestmethodmeasuresthemolecularweightdistributionandmolecularweightaveragesofpolyethylene(exceptLDPE)andpolypropyleneresins.Differencesinmolecularweightandmolecularweightdistributionsignificantlyaffectphysicalproperties,suchasmorphology,strength,meltflowetc.,andasaresult,thefinalpropertiesofproductsmadefromtheseresins.1.1Thistestmethodcoversthedeterminationofmolecularweightdistributionsandmolecularweightaveragesoflinearpolyolefinsbyhightemperaturegelpermeationchromatography(GPC).Thistestmethodusescommerciallyavailablepolystyrenestandardsandequipmentandisapplicabletopolyethylenes(excludinghighpressurelowdensitypolyethylene-LDPE)andpolypropylenessolublein1,2,4-trichlorobenzene(TCB)at140C.Thistestmethodisnotabsoluteandrequirescalibration.Note1Sizeexclusionchromatography(SEC)oftenisusedasanalternativenameforgelpermeationchromatography(GPC).Note2Specificmethodsandcapabilitiesofusersmayvarywithdifferencesincolumns,instrumentation,applicationssoftware,andpracticesbetweenlaboratories.Note3Onegeneralmethodisoutlinedherein;alternativeanalyticalpracticescanbefollowedandareattachedinnoteswhereappropriate.Note4ThereisnosimilarorequivalentISOstandard.1.2ThevaluesstatedinSIunits,basedonIEEE/ASTMS1-10,aretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:83_080_20
【页数】:6P.;A4
【正文语种】:
