ASTM D1882 Test Method for Effect of Cooling System Chemical Solutions on Organic Finishes for Automotive Vehicles
5. Materials
5.1 Test Panels - Steel panels, approximately 100 by 150 mm (4 by 6 in.) shall be prepared in accordance with the Methods of Preparation of Practice D609. The surface of the test panels shall be roughened to 0.25 to 0.50 µm (10 to 20 µin.) prior to applying the organic finish. These panels shall be coated with an organic finish of the type used on vehicles such as clear coated and non-clear coated thermoset urethane and acrylic urethane finishes. Other finishes and painted panels of varying age and dimensions (24 in. minimum) may be used upon agreement between the customer and supplier.
6. Test Solution
6.1 The coolant to be tested shall be either a concentrate or a dilution. Sufficient ASTM Type IV water shall be added to yield a solution of 50 % concentration by volume in accordance with Practice D1176, section on Preparation of Solutions Requiring Inclusion of Separated Solids and Liquids. Any separated solids or liquids shall be included in the test material.
6.2 Other cooling system chemicals shall be tested both without dilution and at a typical use concentration as indicated by instructions on the label. Any separated solids or liquids shall be included in the test material.
