MIL-S-25043C, MILITARY SPECIFICATION STEEL PLATE, SHEET, AND STRIP, 17-7 PH, CORROSION RESISTANT, PRECIPITATION HARDENING (9 MAY 1997) (S/S BY SAE-AMS5528 OR SAE-AMS5529)., MIL-S-25043C, dated 5 November 1965, is hereby canceled. Future acquisitions for this material should refer to the following SAE-AMS specifications, depending on which condition is desired, as indicated below.
【英文标准名称】:StandardGuideforUndergroundInstallationofx201C;Fiberglassx201D;(Glass-FiberReinforcedThermosetting-Resin)Pipe
【原文标准名称】:玻璃纤维增强热固树脂管地下安装的标准指南
【标准号】:ASTMD3839-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D20.23
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:backfill;bedding;fiberglasspipe;haunching;soilstiffness;undergroundinstallation;Backfill;Bedding;Fiberglasspipe;Glass-fiber-reinforcedthermosettingresin(“fiberglass”);Haunching;Nonpressurepiping;Reinforcedthermosetting
【摘要】:Thispracticeisforusebydesignersandspecifiers,manufacturers,installationcontractors,regulatoryagencies,owners,andinspectionorganizationsinvolvedintheconstructionofburiedfiberglasspipelines.Aswithanypractice,modificationsmayberequiredforspecificjobconditions,orforspeciallocalorregionalconditions.RecommendationsforinclusionofthispracticeincontractdocumentsforaspecificprojectaregiveninAppendixX1.1.1Thispracticeestablishesproceduresfortheburialofpressureandnonpressurex201C;fiberglassx201D;(glass-fiber-reinforcedthermosetting-resin)pipeinmanytypicallyencounteredsoilconditions.Includedarerecommendationsfortrenching,placingpipe,joiningpipe,placingandcompactingbackfill,andmonitoringdeflectionlevels.Guidanceforinstallationoffiberglasspipeinsubaqueousconditionsisnotincluded.1.2Productstandardsforfiberglasspipeencompassawiderangeofproductvariables.Diametersrangefrom1in.to13ft(25mmto4000mm)andpipestiffnessrangefrom9toover72psi(60to500kPa)withinternalpressureratingsuptoseveralthousandpoundforcepersquareinch.Thisstandarddoesnotpurporttoconsiderallofthepossiblecombinationsofpipe,soiltypes,andnaturalgroundconditionsthatmayoccur.Therecommendationsinthispracticemayneedtobemodifiedorexpandedtomeettheneedsofsomeinstallationconditions.Inparticular,fiberglasspipewithdiametersofafewinchesaregenerallysostiffthattheyarefrequentlyinstalledinaccordancewithdifferentguidelines.Consultwiththepipemanufacturerforguidanceonwhichpracticesareapplicabletotheseparticularpipes.1.3Thescopeofthispracticeexcludesproduct-performancecriteriasuchasaminimumpipestiffness,maximumservicedeflection,orlong-termstrength.Suchparametersmaybecontainedinproductstandardsordesignspecifications,orboth,forfiberglasspipe.Itisincumbentuponthespecifiedproductmanufacturerorprojectengineertoverifyandensurethatthepipespecifiedforanintendedapplication,wheninstalledinaccordancewithproceduresoutlinedinthispractice,willprovidealong-term,satisfactoryperformanceinaccordancewithcriteriaestablishedforthatapplication.Note18212;ThereisnosimilarorequivalentISOstandard.Note28212;AdiscussionoftheimportanceofdeflectionandapresentationofasimplifiedmethodtoapproximatefielddeflectionsaregiveninAWWAManualofPracticeM45FiberglassPipeDesign.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P94;G31
【国际标准分类号】:23_040_20
【页数】:13P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 金属铬化学分析方法 库仑法测定碳量 |
| 英文名称： | Methods for chemical analysis of chromium metal-The coulometric method for the determination of car |
| 中标分类： |
冶金 >>
金属化学分析方法 >>
钢铁与铁合金分析方法 |
| 发布日期： | 1988-02-21 |
| 实施日期： | 1989-03-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2000-12-20 |
| 起草单位： | 吉林铁合金厂 |
| 出版日期： | 1900-01-01 |
| 页数： | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 冶金 金属化学分析方法 钢铁与铁合金分析方法