ASTM D2199-03 (R2021) pdf free download.Standard Test Method for Measurement of Plasticizer Migration From VinyI Fabrics to Lacquers.
1.1 This test method covers an accelerated test for the measurement of a tendency ftr plasticizers in finished vinyl fabric to be transferred to coatings with which they come in contact.
NOTE 1—Age of fabric sample may ailed results of test. To ensure most reliable results, test with fabric sample closest in age to what will be coated.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
4. Apparatus
4. 1 Drawdown Blade, 125-pm (5-mils) clearance to provide a wet film of approximately 63 pm (2.5 mils) in thickness.
4.2 Plate Glass Panels.
4.3 Window Glass, 51 by 5 1-mm (2 by 2-in.) square. double strength.
4.4 Sponge Rubber 51 by 51 -mm (2 by 2-in.) square by ¼ in. (6.3 mm) thick.
4.5 Weights, flat-bottom, sufficient to place a total weight of 910 g (2 Ib) on each test sample.
4.6 Forced-Convention Oven, thermostatically controlled to ± 2°C.
4.7 Photograph Roller
4.8 Alun,inuin Foil.
5. Procedure
5.1 Apply the coating to the glass panel with the drawdown blade to provide a unifonn film with an area of at least a
51-mm (2-in.) square and a dry thickness of at least 25 pm (1 mil) or as agreed upon. Dry the coating in accordance with the recommendations of the manufacturer or for a minimum of 24h at room temperature and 2 h at 50°C.
5.2 Preheat the glass plate bearing the coating, the 51 by 51-mm (2 by 2-in.) glass square, and the weights for 30 mm at 50°C. Place the square of vinyl fabric on the coating with care and ensure intimate contact by rolling with the photographic roller. Cover the fabric with foil, sponge rubber, glass, and weight in that order. The total weight shall be 910 g (2 1b).
5.3 Place the assembly in the forced convection oven at a temperature of 50°C for 72 h. After removal from the oven and cooling, remove the weight, sponge rubber, and aluminum foil, and carefully remove the vinyl fabric.ASTM D2199 pdf download.