MIL-B-49430C (NOTICE 2)
作者:标准资料网 时间:2024-05-17 15:14:43 浏览:8751
来源:标准资料网
MIL-B-49430C (NOTICE 2), MILITARY SPECIFICATION, MILITARY SPECIFICATION, BATTERIES, NON-RECHARGEABLE, LITHIUM SULFUR DIOXIDE (16 SEP 1998) [S/S BY MIL-PRF-49471(CR)]., MIL-B-49430C(CR), dated 1 August 1991, with Amendment 3, dated 28 July 1993, is hereby canceled.Future acquisitions should refer to MIL-PRF-49471(CR).
【英文标准名称】:ClassificationforSystemandBasisforSpecificationofCopolymersofVinylideneFluoride(VDF)withOtherFluorinatedMaterials(08.03)
【原文标准名称】:偏二氟乙烯(VDF)与其它氟化材料共聚物的详细规范依据和系统的分类
【标准号】:ANSI/ASTMD5575-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料
【英文主题词】:plastics
【摘要】:Thisclassificationsystemcoversbothdevelopingpropertydesignationsandspecificationsforthermoplasticcompositionsconsistingofvinylidenefluoride(VDF)polymersmodifiedwithotherfluoromonomersandproperty-enhancingadditives.Theotherfluoromonomersincludeoneormoreofthefollowing:hexafluoropropylene(HFP),tetrafluoroethylene(TFE),andchlorotrifluoroethylene(CTFE).Theadditivesarethosethatimproveitsflameresistance,processing,orphysicalproperties.However,theseadditivesarenotnormallyconsideredtobereinforcing.Thisclassificationsystemcoversthermoplasticcompositionssuppliedinpelletorpowderforms.Adesignationorspecificationappliesonlytothevirginpolymerspreparedfromvinylidenefluoride(50weight%)withoneormoreofthefollowingcomonomers:hexafluoropropylene,tetrafluoroethylene,andchlorotrifluoroethylene.Somepolymerscontainadditivestoenhancecertainproperties.ThissystemconstitutesalinecalloutasameansofdesignatingandspecifyingpropertiesofVDF-basedcopolymers.Atleastfourofthedesignatedpropertiesareusedtodefineapolymer'sspecification.Specificationcriteriafrominternationaldocumentscanbeusediftheircriteriamatchdesignationpropertiescurrentlyusedbythisclassificationsystem.Thisclassificationsystemisnotintendedfortheselectionofmaterials.Themanufacturerofthevirginresinshallestablishthedesignationofaresinbasedonthepropertyvaluecriteriainthisclassificationsystem.Theminimumspecificationpropertiesareestablishedbythisclassificationsystem.Additionalspecificationproperties,basedonthedesignationpropertiescited,canbeestablishedbytheresinsupplierandcustomer.ThevaluesstatedinSIunitsaretoberegardedasstandard.1.7ThepropertytestsareintendedtoprovideinformationforspecificationsofmodifiedVDF-copolymercompositions.Itisnotthepurposeofthisclassificationsystemtoprovideengineeringdatafordesignpurposes.Note1AlthoughthevalueslistedinTable1,Table2,Table3,Table4,Table5arenecessarytoincludetherangeofpropertiesavailableinexistingmaterials,theyarenottobeinterpretedasimplyingthateverypossiblecombinationofthepropertiesexistsorcanbeobtained.Itispossibleforauserordesigner,using,tocalloutpropertyrelationshipsthatarephysicallyimpossibletooccurinacopolymermadeusingcurrenttechnology.Note2Manyofthesepolymersexhibitpolymorphism.Thetypeandextentofcrystallinestructurewillvarywiththethermomechanicalhistoryofthesample.Propertiesvarybasedonthetechniqueusedtopreparethespecimens.Testmethodsusedinthisclassificationsystemcanresultintheincidentalproductionofhazardousmaterials.ModifiedVDFpolymerfluoroplasticsmeltbetween90and182?C(194and359?F)andarethermallystableuptoabout350?;C(662?F),orsomewhathigher,dependingonthecomposition.(Evolutionofcorrosive,colorless,andtoxichydrogenfluoridecanoccurundercertainconditions.)Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeWarninginandSectionforspecifichazardsstatements.Note3Many,butnotallofthecodesandspecificationsfoundinthisclassificationsystemarealsoinISO12086-1andISO12086-2.
【中国标准分类号】:G17
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语
Product Code:SAE AMS5525
Title:Steel, Corrosion and Heat-Resistant, Sheet, Strip, and Plate, 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V, 1800 掳F (982 掳C) Solution Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant steel in the form of sheet, strip, and plate.
