您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS 2486-1997 蒸汽锅炉和热水器水处理推荐规范

时间:2024-05-28 01:36:10 来源: 标准资料网 作者:标准资料网 阅读:9018
下载地址: 点击此处下载
【英文标准名称】:Recommendationsfortreatmentofwaterforsteamboilersandwaterheaters
【原文标准名称】:蒸汽锅炉和热水器水处理推荐规范
【标准号】:BS2486-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-02-15
【实施或试行日期】:1997-02-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisBritishStandardgivesrecommendationsforthecontrolofwater-sideconditionsofsteamboilersandwaterheatersandalsoforthepreparationoffeedwaterforsuchplant.Thefollowingcategoriesofwaterheatingorsteam-raisingplantarecovered:a)hotwatersystemsasdefinedin1.4;b)electrodeboilers;c)shell(fire-tube)boilersoperatingatpressuresupto30bar;d)water-tubeboilersoperatinguptocriticalpressure;e)once-throughboilers,including'coil'and'hairpin'types,operatingupto,orabove,thecriticalpressure.NOTE1.Regulation11ofthePressureSystemsandTransportableGasContainersRegulations,1989[2]cameintoeffecton1July1994andrequiresboileruserstoprovideoperatorswithadequateandsuitableinstructionsforthesafeoperationoftheboiler,andtoensurethattheboilerisnotoperated,exceptinaccordancewiththeseinstructions.GuidancegivenintheHealthandSafetyExecutive'sApprovedCodeofPracticeSafetyofPressureSystems[3]requiresthatinstructionsshouldcover,ifappropriate,thefeedwatertreatment.NOTE2.TheControlofSubstancesHazardoustoHealth(COSHH)Regulations1994[1]requireanassessmentoftheriskofexposuretosubstanceshazardoustohealthandimplicationofthecontrolmeasuresneededtoprevent,orifthatisnotreasonablypracticable,adequatelycontrolsuchexposure.Allsourcesofexposureintheworkplacearecoveredincludingreleasesresultingfromexplosionorventing.ForfurtherinformationusersareadvisedtoconsulttheApprovedCodesofPracticecoveringthecontrolofsubstanceshazardoustohealthandcontrolofcarcinogenicsubstances[4].TherecommendationsarenotdirectlyappropriateformarineboilerswhichareseparatelyaddressedbyBS1170Recommendationsfortreatmentofwaterformarineboilers.Therecommendationsdonotcovernuclear-poweredsteamgenerationplant.Analyticalproceduresandtestmethodsareoutsidethescopeofthisstandard.AnnexesAtoDprovideadditionalusefulinformation.note:2)1bar=100kPA.
【中国标准分类号】:J98
【国际标准分类号】:13_060_01;91_140_65
【页数】:48P;A4
【正文语种】:英语


【英文标准名称】:StandardSpecificationforDrawers,Furniture,Marine,Steel
【原文标准名称】:抽屉、家具船用钢的标准规范
【标准号】:ASTMF825-1993(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【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】:F25.03
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:drawers;marinefurniture;steelfurnituredrawers;Drawers;Furniture--marineapplications;Shipboardmaterials/applications--specifications;Shipbuildingsteelmaterials--specifications
【摘要】:1.1Thisspecificationcoverstheconstructionofsteelfurnituredrawersforusewhereinvokedbyothermarinefurniturespecifications.1.2Thisspecificationappliestoallfurnituredrawers,exceptitemsrequiringprogressivedrawers.1.3Valuesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalents,giveninparentheses,areprovidedforinformationonly.
【中国标准分类号】:U05
【国际标准分类号】:47_020_80
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Testconditionsfornumericallycontrolledturningmachinesandturningcentres-Part4:Accuracyandrepeatabilityofpositioningoflinearandrotaryaxes
【原文标准名称】:数控立式车床和转向中心的试验条件.第4部分:线性和旋转轴定位的精确度和可重复性
【标准号】:ISO13041-4-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC39
【标准类型】:()
【标准水平】:()
【中文主题词】:转向中心;试验条件;验证;重复性;准确度;线性度;车床;旋转轴;精密度;六角车床;数字控制机床;水平的;机床;数值控制;位置控制;试验;主轴
【英文主题词】:Accuracy;Axisofrotation;Horizontal;Lathes;Linearity;Machinetools;Numericalcontrol;Numericallycontrolledmachines;Positioning;Precision;Repeatability;Spindles;Testingconditions;Tests;Turningcentres;Turretlathes;Verification
【摘要】:ThispartofISO13041specifies,withreferencetoISO230-2,thetoleranceswhichapplytothepositioningtestsforlinearaxes,upto2000mminlength,androtaryaxesofnumericallycontrolled(NC)turningmachinesandturningcentres.Itdoesnotdealwithenvironmentalconditions,warm-upofthemachineandmeasuringmethodsalreadydescribedinISO230-2.
【中国标准分类号】:J53
【国际标准分类号】:25_040_20
【页数】:6P.;A4
【正文语种】:英语