This test method will distinguish between cooling system chemical solutions that do or do not have a tendency to change the surface appearance when applied to organic finishes used on vehicles. Such changes may be manifested by discoloration, loss of gloss, softening, swelling, or other similar phenomena.

1.1 This test method determines the effect of cooling system chemical solutions on organic finishes used on motor vehicles. Cooling system chemicals include: coolants or corrosion inhibitors, or both, cooling system cleaners or flushes, or both, and stop leak additives. Note 1 - This test method is a modification of Practice D 1540.

1.2 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.