DIN 58298-16-1975 医疗器械材料、结构和检验.洁牙器
作者:标准资料网 时间:2024-04-28 00:16:28 浏览:8452
来源:标准资料网
【英文标准名称】:Materials,finishandtestingofmedicalinstruments;scalers
【原文标准名称】:医疗器械材料、结构和检验.洁牙器
【标准号】:DIN58298-16-1975
【标准状态】:作废
【国别】:德国
【发布日期】:1975-09
【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】:设计;牙刮除器;医学科学;牙科学;材料
【英文主题词】:medicalsciences;dentalscalers;materials;dentistry;design
【摘要】:
【中国标准分类号】:C33
【国际标准分类号】:11_060_20
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforVinylandTransUnsaturationinPolyethylenebyInfraredSpectrophotometry
【原文标准名称】:用红外线分光光度法对乙烯基和横相不饱和性的标准试验方法
【标准号】:ASTMD6248-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:红外分光光度法;聚乙烯;横向乙烯集不饱和性;乙烯基不饱和
【英文主题词】:FTIR;infraredspectrophotometry;polyethylene;transvinyleneunsaturation;vinylunsaturation
【摘要】:Therearethreetypesofolefinicgroupspresentinsufficientconcentrationstowarrantconsideration,oneormoreofthatcannormallybefoundinanypolyethylene.Thethreetypesaretrans-vinylene,R-CH=CH-Rx2032;,sometimesreferredtoastrans-internalunsaturation;vinylideneorpendentmethylene,RRx2032;C-CH2;andvinylunsaturation,R-CH=CH2,alsoreferredtoasterminalunsaturation.Thetypeandquantityofthesegroupscaninfluencethechemicalandphysicalpropertiesoftheresin.Informationconcerningtheirpresencemayalsobeusedtocharacterizeoridentifyunknownresinsorblendsofresins.Additivesmayinterferewithunsaturationmeasurements.Theuseiscautionedtodeterminewhichadditivesarepresentandifthereanyabsorbancebandscausedbyadditivepresencethatoverlaporinterferewithunsaturationabsorbancebandsusedinthistestmethodintherangeof1050to850cmx2013;1.Ifoverlappingbandsoccur,themethodisnotapplicable.Interferencefringesresultingfromsmoothsamplesurfacescancausemeasurementerrors.Thistestmethodrequirestheuseofaluminumfoilinthecompressionmoldingofsamplestoprovideanadequatelyroughsurfacetominimizeinterferencefringes.1.1Thistestmethodcoversmosttypesofpolyethylene,thoseethyleneplasticsconsistingofethyleneand-olefincomonomerslongerthanpropylene,andblendsoftheaboveinanyratio.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection8.Note18212;ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G16
【国际标准分类号】:83_080_20
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:MeasurementofLiquidHydrocarbonsbyCoriolisMeters
【原文标准名称】:用科里奥利仪测量液烃
【标准号】:ANSI/APIMPMSCH.5.6-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:烃类;液体;液体测量;仪表
【英文主题词】:Hydrocarbons;Liquid;Measurementofliquids;Meters
【摘要】:DescribesmethodsforachievingcustodytransferlevelsofaccuracywhenaCoriolismetersisusedtomeasureliquidhydrocarbons.Topicscovedinclude:applicableAPIstandardsusedintheoperationofCoriolismeters;provingandverificationusingbothmass-andvolume-basedmethods;installation,operation,andmaintenance.Bothmassandvolume-basedcalculationproceduresforprovingandquantitydeterminationareincludedinAppendixE.
【中国标准分类号】:E30
【国际标准分类号】:75_040
【页数】:
【正文语种】:英语
