Product Code:SAE J999
Title:Crane Boom Hoist Disengaging Device
Issuing Committee:Cranes And Lifting Devices Committee
Scope:This SAE Standard applies to cranes which are equipped to adjust the boom angle by hoisting and lowering means through rope reeving.The purpose of this standard is to define the function and to stipulate the requirements of an automatic device to prevent raising a variable angle boom above its highest specified angle.
基本信息
| 标准名称： | 电物理加工工艺文件编制规则 |
| 中标分类： |
机械 >>
机械综合 >>
技术管理 |
| 替代情况： | 被QJ 903.23A-95代替 |
| 发布日期： | 1985-07-01 |
| 实施日期： | 1986-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 机械综合 技术管理
【英文标准名称】:StandardTestMethodsforPaperUsedforVacuumCleanerFilterBags
【原文标准名称】:真空吸尘器过滤袋用纸的标准试验方法
【标准号】:ASTMF430-2005
【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】:F11.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;纸;过滤器;真空吸尘器;最终制品
【英文主题词】:filtration;paper;vacuumcleaner
【摘要】:Airpermeabilityisanimportantfactorintheperformanceofvacuumcleanerbagfiltermedia,becauseitisadirectindicatoroftheresistancetoairflow.Itmayalsoindicatethesizeofvacuumcleanerbagneededtoachievethedesiredairflowvolume.Performancespecifications,bothindustrialandmilitary,havebeensetuponthebasisofairpermeabilityandareusedinthepurchaseofmaterialswherepermeabilityisofinterest.Sinceairpermeabilityisnotalinearfunctionofpressuredifferentialbetweenpapersurfaces,alltestsshouldbemadeataprescribedpressuredifferential,0.5in.(12.7mm)ofwater.1.1Thesetestmethodscoverprocedurestobefollowedforqualifyingpaperstobeusedinthemanufactureofvacuumcleanerbagsandfilters.Thefiltrationefficiencyofthepaperisnotevaluatedwiththeuseofthesetestmethods.1.2Theproceduresappearinthefollowingsections:ProcedureSectionsAirPermeability(TestMethodD737)3-5BasisWeight(TestMethodD646)6-8BurstingStrength(MullenTest)(TestMethodD774)9-11InternalTearingResistance(TestMethodD689)12-14TensileBreakingStrength(TestMethodD828)15-17