This SAE Standard specifies requirements for a gelled compound for cleaning the soiled exterior of service aircraft. The cleaning gel may be applied by pressure pump as a thixotropic liquid, by brushing or by swabbing. The surfaces to be cleaned may be unpainted metal or surfaces painted with glossy or matt schemes, including strippable acrylic paint complying with DTD 5599. This Standard includes tests to limit specific forms of corrosion that affect aircraft structural materials.