【英文标准名称】:Educationalfurniture-Specificationforstrengthandstabilityoftablesforeducationalinstitutions
【原文标准名称】:教育用具.第3部分:教育机构课桌强度及稳定性规范
【标准号】:BS5873-3-1985
【标准状态】:作废
【国别】:英国
【发布日期】:1985-09-30
【实施或试行日期】:1985-09-30
【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】:额定值;表;静荷载;跌落试验;教育设备;冲击试验;学校用家具;倾倒;桌子;家具;稳定性;性能;作标记;疲劳试验;机械试验;性能试验
【英文主题词】:Droptests;Educationalequipment;Fatiguetesting;Furniture;Impacttesting;Marking;Mechanicaltesting;Overturning;Performance;Performancetesting;Ratings;Schoolfurniture;Stability;Staticloading;Tables
【摘要】:Givesrequirementsfortwogradesforstrengthandstabilityofbothstackingandnon-stackingtables.Includesrequirementsfortablescontainingothercomponentssuchasdrawersandshelves.
【中国标准分类号】:Y81
【国际标准分类号】:97_140
【页数】:18P.;A4
【正文语种】:英语


Product Code:SAE AIR1168/7
Title:Aerospace Pressurization System Design
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope:The requirements for cabin pressure for all types of aircraft have been established for the Armed Services in military specifications, by the Federal Aviation Authority and by the SAE in recommendations. These requirements limit the cabin altitude to 8000 ft in transport and long range military aircraft. In the fighter aircraft, when the pilot uses oxygen and the mission duration is relatively brief, cabin altitudes up to 25,000 ft are allowed. Supersonic transports, which operate at high speed and high altitude, have short flight durations and high rates of descent. To avoid an uncomfortable rate of change of cabin pressure when descending from high altitudes, a maximum cabin altitude of 6000 ft is recommended. The pressurization system design considerations presented in this AIR deal with human physiological requirements, characteristics of pressurization air sources, methods of controlling cabin pressure, cabin leakage control, leakage calculation methods, and methods of emergency cabin pressure release.