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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

Selective (Brush) Nickel Plating Low-Stressed, Low Hardness Deposit
2000-10-01
CURRENT
AMS2441A
This specification covers the engineering requirements for selective (brush) electrodeposition of nickel and the properties of the deposit. This process has been used typically to provide moderate corrosion and oxidation resistance and dimensional build-up and restoration of parts which may operate in service up to 700 degrees F (371 degrees C), where low tensile stress in the deposit is required to avoid marked reduction of fatigue strength, but usage is not limited to such applications.
Standard

Selective (Brush) Nickel Plating Low-Stressed, Hard Deposit
2000-10-01
CURRENT
AMS2439A
This specification covers the engineering requirements for selective (brush) electrodeposition of nickel and the properties of the deposit. This process has been used typically to provide good wear resistance and dimensional build-up and restoration of parts which may operate in service up to 450 degrees F (232 degrees C), where low tensile stress in the deposit is required, but usage is not limited to such applications. Diffusion heat treatment of the deposit is not required.
Standard

Connections, Electrical Solderless, Wire-Wrapped
2008-10-21
HISTORICAL
AMS2695D
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
Standard

Connections, Electrical Solderless, Wire-Wrapped
2006-04-21
HISTORICAL
AMS2695C
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
Standard

Connections, Electrical Solderless, Wire-Wrapped
2013-12-05
CURRENT
AMS2695E
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
Standard

ELECTRICAL CONNECTIONS Solderless, Wire-Wrapped
1982-04-01
HISTORICAL
AMS2695A
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
Standard

ELECTRICAL CONNECTIONS Solderless, Wire-Wrapped
1993-05-01
HISTORICAL
AMS2695B
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
Standard

TIN PLATING, IMMERSION
1974-12-01
HISTORICAL
AMS2409D
This specification covers the engineering requirements for producing a thin tin coating on aluminum alloys by an immersion process.
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