ASTM D149脲甲醛树脂溶液中不挥发物含量的标准测试方法
日期:2012-02-08 16:37
ed.
Tests made as specified herein are suitable for use to provide part of the information needed for determining suitability of a material for a given application; and also, for detecting changes or deviations from normal characteristics resulting from processing variables, aging conditions, or other manufacturing or environmental situations. This test method is useful for process control, acceptance or research testing.
Results obtained by this test method can seldom be used directly to determ
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