GB 5412-1985 全脂加糖乳粉

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Product Code:SAE ARP4268
Title:Aerospace Hydraulic System Fluid Contamination - Location of Sampling Points (Cancelled Jan 1999)
Issuing Committee:A-6a1 Commercial Aircraft Committee
Scope: The scope of this Aerospace Recommended Practice (ARP) covers where, when, and how often to sample hydraulic system fluid on aerospace vehicles for particulate contamination measurements. The measurement of hydraulic fluid particulate contamination is of concern to the aerospace community because of the critical importance of hydraulic equipment reliability. Contamination is always present in the system fluid, even in new unused fluid. Contamination must be below a level that will not adversely affect system operation. This ARP draws from aerospace industry experience and practice to establish criteria for fluid contamination sampling recommendations in aerospace vehicle hydraulic systems. Fluid samples can then be subjected to measurement of particulate contamination and of other harmful contaminants such as chlorinated solvents and water.

标准名称：	铜、镍及其合金管材料和棒材断口检验法
中标分类：	冶金 >> 有色金属及其合金产品 >> 重金属及其合金
替代情况：	改号为YS/T 336-本994
发布日期：
实施日期：	1993-07-01
首发日期：
作废日期：
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