Product Code:SAE AIR883 Title:A Method of Ground Resonance Testing for Helicopters (Cancelled Apr 1965) Issuing Committee:S-12 Helicopter Powerplant Committee Scope: (This document supersedes and cancels AIR 12) 'Ground resonance' is a term which originated in the early days of autogiro development in this country. It is a somewhat ambiguous term as the conditions it describes usually occur at the ground but do not have any association with the common expression 'ground effect'. However, the troubles usually associated with 'ground resonance' do occur when the ship is on or near the ground.【英文标准名称】:Portablefireextinguishers-Part7:Characteristics,performancerequirementsandtestmethods;GermanversionEN3-7:2004 【原文标准名称】:便携式灭火器.第7部分:特性、性能要求和试验方法 【标准号】:DINEN3-7-2004 【标准状态】:作废 【国别】:德国 【发布日期】:2004-04 【实施或试行日期】: 【发布单位】:德国标准化学会(DIN) 【起草单位】: 【标准类型】:() 【标准水平】:() 【中文主题词】:操作规范;灭火器;效率;试验;试验目标;防火安全;性能要求;灭火剂;灭火设备;火灾分类;组件;消防;灭火器具;作标记;检验;燃烧试验;特性;性能;定义;规范(验收);设备;容量;消防设备;便携灭火器;便携的;电导性;消防队 【英文主题词】:Capacity;Classificationoffires;Components;Definition;Definitions;Efficiency;Electricalconductivity;Equipment;Extinguishingagents;Extinguishingequipment;Firebrigade;Fireextinguishers;Fireextinguishingapparatus;Firesafety;Firetests;Firefighting;Firefightingequipment;Inspection;Marking;Operatingspecification;Performance;Performancerequirements;Portable;Portablefireextinguisher;Properties;Specification(approval);Testobjects;Testing 【摘要】:Thisstandardspecifiescharacteristics,performancerequirementsandtestmethodsforportablefireextinguishers.#,,# 【中国标准分类号】:C84 【国际标准分类号】:13_220_10 【页数】:48P.;A4 【正文语种】:德语