MIL-C-28809B

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MIL-C-28809B, MILITARY SPECIFICATION: CIRCUIT CARD ASSEMBLIES, RIGID, FLEXIBLE, AND RIGID FLEX (13 MAY 1988) [SUPERSEDING MIL-P-28809A] [NO S/S DOCUMENT]., This specification establishes the requirements for circuit cardassemblies, consisting of printed wiring boards on which separately manufacturedparts have been added. The term "assemblies" is used herein when referring tocircuit card assemblies. The term "board" is used herein when referring to printedwiring board or printed circuit boards.
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【英文标准名称】:TestMethodsforFrictionTapes
【原文标准名称】:磨擦带的试验方法
【标准号】:ASTMD69-1995
【标准状态】:作废
【国别】:美国
【发布日期】:1995
【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】:绝缘带;试验;窄条带材;绝缘;电气工程;电绝缘;电缆
【英文主题词】:electricalengineering;testing;cables;insulations;insulatortapes;electricalinsulation;tape
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_040_20
【页数】:
【正文语种】:英语


Product Code:SAE J1658
Title:Alternate Refrigerant Consistency Criteria for Use in Mobile Air-Conditioning Systems
Issuing Committee:Interior Climate Control Committee
Scope:This SAE Recommended Practice applies to refrigerant blends (multicomponent refrigerants) intended for use as retrofit refrigerants to replace CFC-12 (R-12) in mobile air-conditioning (A/C) systems. Since the composition of non-azeotropic refrigerant mixtures changes as refrigerant is lost, either through the vapor phase or the liquid phase, the method of charging A/C systems is important. The purpose of this document is to determine the proper refrigerant phase, liquid or vapor, for system charging by relating system performance changes to the charging method.This document is complete only when combined with the requirements of SAE J1657.