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Standard

INSTRUMENTAL METHODS OF DETERMINING SURFACE CLEANLINESS

1995-05-01
HISTORICAL
ARP4252
This Aerospace Recommended Practice is intended as a guide toward standard practices for the determination of surface cleanliness that are applicable to field operation. Some of these methods can also be used to determine quality assurance that a surface has been properly prepared and maintained. The instrumental methods are: Wettability, Surface Potential Difference (SPD), Ellipsometry, and Optically Stimulated Electron Emission (OSEE). Each instrument is described with respect to measurement techniques, limitations, and advantages and types of available instruments. Elementary theoretical principles and examples of the use of each instrument are also given.
Standard

Instrumental Methods of Determining Surface Cleanliness

2017-01-04
HISTORICAL
ARP4252A
This Aerospace Recommended Practice is intended as a guide toward standard practices for the determination of surface cleanliness that are applicable to field operation. Some of these methods can also be used to determine quality assurance that a surface has been properly prepared and maintained. The instrumental methods are: Wettability, Surface Potential Difference (SPD), Ellipsometry, and Optically Stimulated Electron Emission (OSEE). Each instrument is described with respect to measurement techniques, limitations, and advantages and types of available instruments. Elementary theoretical principles and examples of the use of each instrument are also given.
Standard

Instrumental Methods of Determining Surface Cleanliness

2017-09-20
CURRENT
ARP4252B
This Aerospace Recommended Practice is intended as a guide toward standard practices for the determination of surface cleanliness that are applicable to field operation. Some of these methods can also be used to determine quality assurance that a surface has been properly prepared and maintained. The instrumental methods are: Wettability, Surface Potential Difference (SPD), Ellipsometry, and Optically Stimulated Electron Emission (OSEE). Each instrument is described with respect to measurement techniques, limitations, and advantages and types of available instruments. Elementary theoretical principles and examples of the use of each instrument are also given.
Standard

Compound, Corrosion Preventive Aircraft Engine

2007-04-05
CURRENT
AMS3072E
This specification covers a blend of corrosion-preventive compound concentrate and petroleum-base aircraft-engine lubricating oil in the form of a ready-to-use liquid.
Standard

Oil, Carburetor Flushing

1990-01-01
CURRENT
AMS3070E
This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE as of January 1990.
Standard

ALCOHOL-WATER MIXTURES

1983-01-01
HISTORICAL
AMS3006C
This specification covers mixtures of methyl alcohol or ethyl alcohol, or both, with water in the form of liquids.
Standard

ALCOHOL-WATER MIXTURES

1989-07-01
HISTORICAL
AMS3006D
This specification covers mixtures of methyl alcohol and/or ethyl alcohol, with water in the form of liquids.
Standard

ALCOHOL-WATER MIXTURES

1994-01-01
HISTORICAL
AMS3006E
This specification covers mixtures of methyl alcohol and/or ethyl alcohol with water in the form of liquids.
Standard

Fluid, Aircraft Compass

2009-10-06
CURRENT
AMS3151C
This specification covers one grade of hydrocarbon compass fluid.
Standard

Plating, Brush, Nickel Low Stress, Medium-Hardness Deposit

2000-08-01
HISTORICAL
AMS2451/7
This specification covers the engineering requirements and process for brush plating of medium-hardness, low stress nickel by electrodeposition. It should be used, in conjunction with AMS 2451, for medium-hardness, low stress nickel deposits.
Standard

Plating, Brush, Cobalt

2001-10-01
HISTORICAL
AMS2451/11
This specification covers the engineering requirements and process for brush plating of cobalt by electrodeposition. It is used, in conjunction with AMS 2451, for general-purpose cobalt deposits.
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