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Standard

Standard Contaminant for Testing Aerospace Cleaners

2020-07-14
CURRENT
AMS7201
This specification establishes requirements for a standard contaminant that can be used to represent typical soils encountered in aerospace cleaning. This standard contaminant consists of materials that are common contaminants found in aircraft maintenance depots and manufacturing facilities.
Standard

Test Method for Aerospace Firewall Sealant Flame Penetration

2020-07-07
CURRENT
AS5127/2C
This SAE Aerospace Standard (AS) describes the test methods to determine the flammability performance and capability to control the passage of, and effects from, fire on aircraft firewall sealing compounds. The methods are based requirements of FAR Part 25 Sections 25.865, 25.867, 25.1191, and 25.1193 and may be used to demonstrate compliance with the requirements established by FAA AC 20-135. This standard shall be used in conjunction with applicable material specifications.
Standard

Aerospace Standard Test Methods for Aerospace Sealants Two-Component Synthetic Rubber Compounds

2020-03-18
CURRENT
AS5127/1D
This SAE Aerospace Standard (AS) describes test methods to determine the application and performance properties of two-component sealing compounds. It shall be used in conjunction with AS5127 and the applicable material specification. When modifications to these test methods are called out in material specifications, the material specification shall take precedence.
Standard

Fluid, Jet Reference

2020-03-12
CURRENT
AMS2629F
This specification covers a mixture of liquid hydrocarbons and soluble additives.
Standard

Methyl Propyl Ketone

2019-09-11
WIP
G919AB
This specification establishes the requirements for methyl propyl ketone (MPK).
Standard

Swabs and Applicators

2019-06-20
WIP
G919AA
This specification covers both cotton and foam style swabs and applicators for solvent cleaning processes applications.
Standard

Insulating Compound, Electrical, Embedding, Reversion Resistant Silicone

2019-03-06
WIP
AS81550B
This specification covers the requirements for two types of a two-part, transparent, reversion resistant flexible insulating compound, to provide resilient, environmental, and electrical insulation of components in systems in temperature range 85 to 392 °F (-65 to 200 °C). These insulating compounds are intended for embedding, potting or encapsulation of electrical and electronic components in systems where tear resistance is not critical but their use is not limited to such applications. These transparent compounds allow visual circuit and part identification and facilitates part replacement and repairs. The insulating compound shall cure in sections of unlimited thickness, either exposed to air or completely sealed.
Standard

Jet Reference Fluid Study for Fuel Tank Sealants

2018-05-29
WIP
AIR4275B
Standard reference fluids, or test fluids, have long been used to evaluate the effects of hydrocarbon fuels on various materials, such as integral fuel tank sealants. Standard fluids are required because hydrocarbon fuels, such as JP-4, vary widely in composition depending on crude source, refining techniques, and other factors. To ensure reliable and reproducible results when determining the fuel resistance of materials, reference fluids of known composition, using worst case fuel compositions, are used. The current Jet Reference Fluid (JRF) called out in military sealant specifications was developed in the mid-1950s specifically as a JP-4 type test fluid formulation to be used for the accelerated laboratory testing of integral fuel tank sealants. In August 1978, chalking of the polysulfide sealant in integral fuel tanks of some new aircraft at Edwards Air Force Base in California was discovered after only 1 year of service.
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