ASTM D2199-03(R2021) pdf free download

ASTM D2199-03(R2021) pdf free download.Standard Test Method for Measurement of Plasticizer Migration From Vinyl Fabrics to Lacquers
1. Scope
1.1 This test method covers an accelerated test for the measurement of a tendency for plasticizers in finished vinyl fabric to be transferred to coatings with which they come in contact. N OTE 1—Age offabric sample may affect results oftest. 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. 1.3 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Summary of Test Method
2.1 A small sample of vinyl fabric is placed on a condi- tioned coating film under a pressure of 3.45 kPa ( 1 ⁄ 2 psi). The assembly is placed in an oven for 3 days at elevated tempera- ture. At the end of that time, the coating is examined for marring or softening. For coatings that may block or print at 50°C or lower, a lower test temperature and a longer test time may have to be used.
3. Significance and Use
3.1 Plasticizers in finished vinyl fabric can be transferred to coatings with which they come in contact. When this takes place, objectionable marring and softening occur. This test method covers an accelerated test for measurement of this tendency.
4. Apparatus
4.1 Drawdown Blade, 125-µm (5-mils) clearance to provide a wet film of approximately 63 µm (2.5 mils) in thickness. 4.2 Plate Glass Panels. 4.3 Window Glass, 51 by 51-mm (2 by 2-in.) square, double strength. 4.4 Sponge Rubber, 51 by 51-mm (2 by 2-in.) square by 1 ⁄ 4 in. (6.3 mm) thick. 4.5 Weights, flat-bottom, sufficient to place a total weight of 910 g (2 lb) on each test sample. 4.6 Forced-Convection Oven, thermostatically controlled to 62°C. 4.7 Photograph Roller. 2 4.8 Aluminum Foil.
5. Procedure
5.1 Apply the coating to the glass panel with the drawdown blade to provide a uniform film with an area of at least a 51-mm (2-in.) square and a dry thickness of at least 25 µm (1 mil) or as agreed upon. Dry the coating in accordance with the recommendations of the manufacturer or for a minimum of 24 h 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 min 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 lb). 5.3 Place the assembly in the forced convection oven at a temperature of50°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. Note and report any resistance to removal. Wipe the surface ofthe fabric with a soft rag dampened with heptane and examine for removal of exuded plasticizer.
6. Rating
6.1 Rate the degree of migration by viewing the surface of the coating at a low angle against the light within 2 h after termination of heating and within 15 min of removal of the fabric.
7. Report
7.1 Report marring or softening, or both, on the scale of no change, faint imprint, severe imprint, or marring. 7.2 If plasticizer is evident when the surface is wiped, this shall be reported.