ASTM D1882 Test Method for Effect of Cooling System Chemical Solutions on Organic Finishes for Automotive Vehicles
7. Procedure
7.1 Conduct the test at 25 +/- 5 °C without humidity control.
7.2 Select a test panel prepared in accordance with Section 5. Place sufficient test solution on the surface of the test panel to form spots approximately 25 mm (1 in.) in diameter.
7.3 After 1 h, wipe the surface with a wet cloth, buff with a soft, dry cloth and examine the finish for visual and physical evidence of the effects listed in Section 4.
7.4 Lightly polish the test surface with any well-known liquid car cleaner. Compare the untreated area with the treated spots on the basis of removability of the stain.
NOTE 2 - Stains may disappear after short exposure to the weather, for example, 8 to 24 h of sunshine. Such stains are considered by some persons to be unobjectionable.
