ASTM F 1140-1988 医疗设备用可伸缩的和软包装箱抗损坏性的试验方法

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【英文标准名称】:MethodforVickershardnesstestandforverificationofVickershardnesstestingmachines
【原文标准名称】:维氏硬度试验方法和维氏硬度试验机
【标准号】:BS427-1990
【标准状态】:作废
【国别】:英国
【发布日期】:1990-06-29
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:准确度;金属;误差;硬度试验;维氏硬度测量;方程;试验条件;误差修正;硬度测量;厚度;试验设备;硬度测试仪;试样;校正;合金;验证
【英文主题词】:
【摘要】:
【中国标准分类号】:H22;N71
【国际标准分类号】:77_040_10
【页数】:58P;A4
【正文语种】:英语


【英文标准名称】:Connectionsforgeneraluseandfluidpower-PortsandstudendswithISO261threadswithelastomericormetal-to-metalsealing-Studendswithelastomericsealing(typeE)
【原文标准名称】:普通和液压传动用联接件.用ISO261弹性螺纹或金属与金属间密封的气门和双头螺栓端头.(E型)弹性密封的双头螺栓端头
【标准号】:BSENISO9974-2-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-08-15
【实施或试行日期】:2000-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:机械试验;性能;螺纹;液压传动系统;密封材料;管道配件;弹性体;螺柱;金属;尺寸;孔;气动传动系统;压力;名称与符号;管接头
【英文主题词】:Close-fitthreads;Compressionfittings;Definition;Definitions;Design;Designations;Dimensions;Draw-offtaps;Erecting(constructionoperation);Fasteners;Fluidcircuits;Fluidtechnology;Holes;Hydraulicfluidpower;Maintenance;Materials;Medium-duty;Metric;Openings;Pipeconnections;Pipecouplings;Pipefittings;Pipethreads;Pipes;Ports(openings);Profilesealingrings;Screwplugs;Screwedconnections;Screwedplugs;Screwing-in;Screwings;Screws(bolts);Sealingrings;Seals;Size;Specification;Standardcouplings;Storage;Tappedholes;Tenons;Threads;Tolerances(measurement);Valves;Whitworth;Whitworthpipethreads
【摘要】:ThispartofISO9974specifiesdimensions,perform-ancerequirementsandtestproceduresforheavy-duty(Sseries)andlight-duty(Lseries)studendswithISO261threadsandtheelastomericsealingthatisusedwiththem.Italsospecifiesthedesignationofthesestudendsandtheirelastomericsealing.Heavy-duty(Sseries)studendswithtypeEsealinginaccordancewiththispartofISO9974maybeusedatworkingpressuresupto63MPa(630bar).Light-duty(Lseries)studendswithtypeEsealinginaccor-dancewiththispartofISO9974maybeusedatworkingpressuresupto25MPa(250bar).Thepermiss-ibleworkingpressuredependsuponthestudendsize,materials,design,workingconditions,application,etc.Forthreadedportsandstudendsspecifiedinnewdesignsinhydraulicfluidpowerapplications,onlyISO6149istobeused.ThreadedportsandstudendsinaccordancewithISO1179,ISO9974andISO11926arenottobeusedfornewdesignsinhydraulicfluidpowerapplications.ConformancetothedimensionalinformationinthispartofISO9974doesnotguaranteeratedperform-ance.EachmanufacturershouldperformtestingaccordingtothespecificationcontainedinthispartofISO9974toassurethatcomponentscomplywiththeperformanceratings.note:1)1bar=0.1MPa=10pa;1MPa=1N/mm
【中国标准分类号】:J20
【国际标准分类号】:23_100_60
【页数】:18P;A4
【正文语种】:英语