Despite the great impact of the stabilizer on SMA quality, few countries have developed testing methods and criteria for the practicality of stabilizers. Some assessment methods for the application of stabilizers in various countries are presented in Chapter 5.
Practice proves that a reliable stabilizer-effectiveness assessment can be carried out when the same SMA mixture (the same JMF*) is tested with different stabilizers. Comparison of test results from tests on different SMA mixtures is unreliable. The results of one test will not be comparable with the those of the others because the results for each mixture depend on the SMA composition, such as the type of aggregate and binder contents.
A direct method of checking the effectiveness of stabilization (i. e., absorption capacity) is the oil-absorption method (see Chapter 5).
