3.1 The nonvolatile content of resin solutions is useful to coatings producers and users for the determination of the total solids available for film formation and for the estimation of the volatile organic content.
1.1 These test methods cover the determination of nonvolatile content of solutions of resins in volatile organic solvents.
1.2 Two test methods are included as follows:
1.2.1 Test Method A?/i>For solutions of non-heat-reactive resins. These solutions contain resins that remain stable and release the solvent under conditions of the test. Examples are ester gums and alkyds.
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