1.1 This test method covers the determination of the percent weight loss of cured solventless electrical varnishes when exposed to elevated temperatures for prescribed periods of time.
1.2 Results of this test method are based on 6-mm (1/4-in.) thick specimens and will not be applicable to specimens appreciably thinner or thicker than 6 mm.
1.3 The values stated in SI units are to be regarded as the standard.
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 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 18212;This standard resembles IEC 60216-2 "Guide for the determination of thermal endurance properties of electrical insulating materials. Part 2: Choice of test criteria" in a number of ways, but is not consistently similar throughout. The data obtained using either standard will possibly be technically equivalent.
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