ANSI Z21.21-1993 煤气器具用自动阀

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【英文标准名称】:StandardSpecificationforHot-FormedWeldedandSeamlessHigh-StrengthLow-AlloyStructuralTubing
【原文标准名称】:热成型焊接和无缝高强度低合金结构钢管的标准规范
【标准号】:ASTMA618-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:高抗拉;合金钢;钢;结构钢;焊接的;管道;管
【英文主题词】:pipes;steels;hightensile;structuralsteels;welded;pipelines;alloysteels
【摘要】:
【中国标准分类号】:H48
【国际标准分类号】:23_040_40;23_040_10
【页数】:4P;A4
【正文语种】:英语


Product Code:SAE ARP86
Title:Heater, Airplane, Engine Exhaust Gas to Air Heat Exchanger Type (NONCURRENT Nov 1996)
Issuing Committee:Ae-5 Aerospace Fuel, Oil And Oxidizer Systems Committee
Scope:These recommnedations are written to cover the subject of engine exhaust gas to air type heat exchangers under the following clasifications:Cabin Heating: (All occupied regions and windshields heating).Wing and empennage heating.Engine and Accesory Heating: (When heater is installed as part of the aircraft).These recommendations are not intended to cover the design of secondary exchangers which may be required when engine exhaust gas to air type heat exchangers are used in supplying ventilating air.