MIL-G-9954A (NOTICE 2), MILITARY SPECIFICATION: GLASS BEADS: FOR CLEANING AND PEENING (14 JAN 2004) [S/S BY MIL-PRF-9954B]., MIL-G 9954A, dated 15 OCT. 1987, is hereby reinstated and may be used for either new or existing design acquisition.
基本信息
| 标准名称： | 镶硬质合金刀片的浮动镗刀 D＝30~35mm |
| 中标分类： |
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| 发布日期： | 1980-10-01 |
| 实施日期： | 1980-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 6页 |
适用范围
附编制说明
前言
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目录
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引用标准
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所属分类：
【英文标准名称】:StandardTestMethodforLeaksUsingUltrasonics
【原文标准名称】:用超声波检漏的标准试验方法
【标准号】:ASTME1002-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:超声检验;超声波学;试验;无损检验;泄漏
【英文主题词】:leakdetection-ultrasonic;leaktesting;leakagerate;ultrasonicdetector
【摘要】:TestMethodA8212;Thistestmethodisusefulforlocatingandestimatingthesizeofpressurizedgasleaks,eitherasaqualitycontroltestorasafieldinspectionprocedure.Itisalsovaluableasapretestbeforeothermoretimeconsumingandmoresensitiveleaktestsareemployed.Itshouldnotbeusedexclusivelytolocatehighlytoxicorexplosivegasleaks.TestMethodB8212;Thistestmethodisusefulforlocatingleaksinsystemsthatarenotunderpressureorvacuumaseitheraqualitycontrolorafieldinspectionprocedure.Itisnotusefulforestimatingthesizeofaleak.Itisalsovaluableasapretestbeforeleaktestsusingpressurizedgasmethodsandmoresensitiveleaktestsareemployed.1.1TestMethodA,Pressurization8212;Thistestmethodcoversproceduresforcalibrationofultrasonicinstruments,location,andestimatedmeasurementsofgasleakagetoatmospherebytheairborneultrasonictechnique.178;1.2Ingeneralpracticethisshouldbelimitedtoleaksdetectedbytwoclassificationsofinstruments,ClassIandClassII.ClassIinstrumentsshouldhaveaminimumdetectableleakrateof6.7107mol/s(1.5102std.cm3/sat0C)ormoreforthepressuremethodofgasleakagetoatmosphere.ClassIIinstrumentsshouldhaveaminimaldetectableleakrateof6.7106mol/s(1.5101std.cm3/sat0C)ormoreforthepressuremethodofgasleakagetoatmosphere.RefertoGuideE432foradditionalinformation.1.3TestMethodB,UltrasonicTransmitterForobjectundertestnotcapableofbeingpressurizedbutcapableofhavingultrasonictoneplaced/injectedintothetestareatoactasanultrasonicleaktracesource.1.3.1Thistestmethodislimitedtoleaksproducingleakageof6.7106mol/s(1.5101std.cm3/sat0C)orgreater.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:4P.;A4
【正文语种】: