【英文标准名称】:Strandedwireropesforminehoisting;technicaldeliveryrequirements
【原文标准名称】:矿井提升用的绞合钢丝绳交货的技术要求
【标准号】:ISO3154-1988
【标准状态】:现行
【国别】:国际
【发布日期】:1988-06
【实施或试行日期】:1988-06-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC82
【标准类型】:()
【标准水平】:()
【中文主题词】:认证;金属丝绳;提升设备;采掘设备;试验;尺寸;规范;包装件
【英文主题词】:Acceptanceinspection;Acceptancespecification;Brazing;Certification;Certification(approval);Corrosionprotection;Definitions;Dimensions;Fibres;Fracture;Leaffibres;Liftingequipment;Lubricants;Man-madefibres;Marking;Materials;Mining;Miningequipment;Packages;Ropes;Sisal;Specification(approval);Specifications;Strengthofmaterials;Tensilestrength;Testing;Tests;Tolerances(measurement);Windingropes;Wireropes;Wires;Zinccoatings
【摘要】:Specifiesthosepropertiesofropesandoftheircomponentpartswhichformabasisforacceptance.Doesnotapplytofull-lockcoilropes,balanceropesandflatropesusedinmines.Thecharacteristicsofthewiretobeusedforthemanufactureoftheseropesarenotcovered.AnnexAgivesanexampleofaworkscertificate;annexBgivesanexampleofafullworkscertificate.Thissecondeditioncancelsandreplacesthefirstedition(1976).
【中国标准分类号】:H49
【国际标准分类号】:73_100_40
【页数】:11P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforQualificationofaCombinationofSqueezeTool,Pipe,andSqueeze-OffProcedurestoAvoidLong-TermDamageinPolyethylene(PE)GasPipe
【原文标准名称】:为避免聚乙烯燃气管长期受损用挤压工具、管和挤出工序组合的鉴定实施规范
【标准号】:ASTMF1734-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:F17.60
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:特性;燃气管路;塑料;试验
【英文主题词】:damage;gasflow;pipe;polyethylene;squeeze;squeeze-off;tubing
【摘要】:Squeeze-offiswidelyusedtotemporarilycontroltheflowofgasinPEpipe.Squeezetoolsvarydependingonthesizeofthepipeandthedesignofthetool.Squeeze-offproceduresvarydependingonthetooldesign,pipematerial,andenvironmentalconditions.Experienceindicatesthatsomecombinationsofpolyethylenematerial,temperature,tooldesign,wallcompressionpercentageandprocedurecancausedamageleadingtofailure.Studiesofpolyethylenepipeextrudedinthelate1980sandthereaftershowthatdamagetypicallydoesnotdevelopwhenthewallcompressionpercentageis30%orless,whentemperaturesareabove50x00B0;F(10x00B0;C),andwhenclosureandreleaseratesaretypicaloffieldconditionsforscrew-driventools.4WithtoolsmeetingSpecificationF1563,acceptableflowcontrolattypicalgasservicepressuresisachievedatwallcompressionpercentagesbetween10and20%forpipediameterslessthan6in.4,5Becausedamagedoesnotdevelopinthesematerialsatsuchsqueezelevels,thereferencescitedindicatethatsqueeze-offflowcontrolpracticesusingtoolsmeetingSpecificationF1563andqualifiedproceduresmeetingPracticeF1041areeffectiveforsmallerpipesizes.4,5Note38212;SpecificationF1563providesaprocedureforevaluatingtoolflowcontrolperformance.Thispracticeprovidesamethodtoqualifyacombinationofsqueezetool,pipesizeandmaterial,andsqueeze-offproceduretoensurethatlong-termdamagedoesnotoccur.Thispracticeisusefulforpolyethylenegaspipemanufacturedbefore1975,forneworrevisedpolyolefingaspipematerials,forpipediametersof8in.orabove,forneworrevisedsqueezetooldesigns,andforneworrevisedsqueeze-offprocedures.1.1Thispracticecoversthequalificationofasqueezeprocessconsistingofacombinationofasqueezetool,pipe,andsqueeze-offprocedurestoavoidlong-termdamageinpolyethylenegaspipe.Thispracticeexaminestheinsideandoutsidesurfacesofthepipenearthesqueezetodeterminetheexistenceoffeaturesindicativeoflong-termcracking.Theoccurrenceofthesefeaturesdependsonthesqueezetooldesign,thepipebeingsqueezed,andthesqueezeproceduresbeingused.Thispracticeisparticularlyappropriateforpre-1975Polyethylene(PE)pipe,andforpipewithdiametergreaterthanorequalto8in.,becauseofthegreaterpossibilityoflongtermdamage.1.2Afterthevisualscreeningidentifiesaviablesqueezeprocess,asustainedpressuretestinaccordancewithSpecificationD2513shouldbeusedtoconformtheviability.1.3Thispracticeisforusebysqueeze-toolmanufacturersandgasutilitiesforallsqueezetoolsmadeinaccordancewithSpecificationF1563;pipemanufacturedinaccordancewithSpecificationD1513,uptoandincludingpipediametersof12in.;andsqueezeproceduresinaccordancewithGuideF1041.1.4Governingcodesandprojectspecificationsshouldbeconsulted.Nothinginthispracticeshouldbeconstruedasrecommendingpracticesorsystemsatvariancewithgoverningcodesandprojectspecifications.1.5WhereapplicableinthisGuide,"pipe"shallmean"pipeandtubing."1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,ass......
【中国标准分类号】:P94
【国际标准分类号】:23_040_20
【页数】:4P.;A4
【正文语种】: