GB 10641-1989 螺旋棘轮螺钉旋具
时间:2024-05-03 22:52:29 来源: 标准资料网 作者：标准资料网 阅读：8057
基本信息
| 标准名称： | 螺旋棘轮螺钉旋具 |
| 中标分类： |
机械 >>
工艺装备 >>
手工工具 |
| 替代情况： | 调整为QB/T 3865-1999 |
| 发布日期： | |
| 实施日期： | 1989-10-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 4页 |
适用范围
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引用标准
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所属分类： 机械 工艺装备 手工工具
【英文标准名称】:StandardTestMethodforWater-ExtractableChlorideinAggregate(SoxhletMethod)
【原文标准名称】:集料中抽去水的氯化物的标准试验方法(索格利特法)
【标准号】:ASTMC1524-2002a
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:C09.69
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混凝土;氯化物;集料;索格利特(提取器)
【英文主题词】:aggregate;chloridecontent
【摘要】:Water-extractablechloride,whenpresentinsufficientamount,hasapotentialtoinitiateoracceleratecorrosionofmetals,suchassteel,embeddedinorcontactingacementitioussystem,suchasmortar,grout,orconcrete.Thistestmethodisapplicablewhenaggregatescontainahighbackgroundofnaturallyoccurringchloride(seeACI222.1x2013;96).TestMethodC1152/C1152Mdeterminesacid-solublechlorideandTestMethodC1218/C1218Mdetermineswater-solublechloride.BothTestMethodsC1152/C1152MandC1218/C1218Mpulverizethesampletoafinepowderorfinegranularmaterial.TheSoxhletmethodisintendedtousenonpulverizedmaterial.ResultswithsomeaggregateshaveshownthattheSoxhletprocedureextractsanextremelylowamountofchloride,withmostofitremainingintherock,andtherefore,itisnotavailableforcorrosion.TheSoxhletextractionapparatusconsistsofthreesections:theboilingflask,whichcontainsreagentwateratthebeginningofthetest;theextractor,whichcontainsthesampleinsideathimble;and,thecondenser.Theextractorfunctionsbyboilingthewater,whichcondensesanddripsontothesample.Whenthewaterattainsafixedheightabovethesample,theextractorsiphonsthewaterfromthethimblebacktotheboilingflask.Theprocessrepeatsitselfuntilthetestisterminated.(RefertoFig.1.)FIG.1SoxhletExtractionApparatus1.1Thistestmethodprovidesproceduresforsamplingandanalysisofaggregateforwater-extractablechlorideusingaSoxhletextractor.Note18212;Thistestmethodistobeusedwhensignificantlyhighchloridecontenthasbeenfoundinaggregates,concretes,ormortars.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:
Product Code:SAE AMS2410
Title:Plating, Silver, Nickel Strike, High Bake
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification covers the engineering requirements for electrodeposition of silver on other metals, usually with a nickel strike between the basis metal and the silver.