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Product Code:SAE J2275
Title:Internal Combustion Engines--Piston Ring-Grooves
Issuing Committee:Piston And Ring Standards Committee
Scope: This SAE standard identifies and defines the most commonly used terms for piston ring-goove charactersitics, specifies dimensioning for groove widths, and demonstrates the methodology for calculation of piston groove root diameter. The requirements of this document apply to pistons and rings of reciprocating internal combustione ngines and compressors working under analogous conditions, up to and including 200 mm diameter and 4.5 mm width for compression rings and 8.0 mm width for oil rings. The specifications in this document assume that components are measured at an ambient temperature of 20 degrees C (68 degrees F). Tolerances specified in this document represent a six sigma quality level.【英文标准名称】:MeasurementUncertaintyforFluidFlowinClosedConduits
【原文标准名称】:密封管道中液体流量测量的不确定度
【标准号】:ANSI/ASMEMFC-2M-1983
【标准状态】:现行
【国别】:美国
【发布日期】:1983
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:流量测量;流量测量技术;测量不确定度;测量方法;管道;管
【英文主题词】:Flowmeasurement;Flowmeasurements;Flowmeasuringtechniques;Measuringincertainity;Methodsformeasuring;Pipelines;Pipes
【摘要】:ThisStandardpresentsaworkingoutlinedetailingandillustratingthetechniquesforestimatingmeasurementuncertaintyforfluidflowinclosedconduits.Thestatisticaltechniquesandanalyticalconceptsappliedhereinareapplicableinmostmeasurementprocesses.Section2providesexamplesofthemathematicalmodelappliedtothemeasurementoffluidflow.Eachexampleincludesadiscussionoftheelementalerrorsandexamplesofthestatisticaltechniques.Anefforthasbeenmadetousesimpleprosewithaminimumofjargon.ThenotationanddefinitionsaregiveninAppendixAandareconsistentwithIS03534,Statistics-VocabularyandSymbols(1977).
【中国标准分类号】:N12;A52
【国际标准分类号】:17_120_10
【页数】:
【正文语种】:英语