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
also specify:
Method of voltage application,
Voltage rate-of-rise, if slow rate-of-rise method is specified,
Specimen selection, preparation, and conditioning,
Surrounding medium and temperature during test,
Electrodes,
Wherever possible, the failure criterion of the current-sensing element, and
Any desired deviations from the recommended procedures as given.
If any of the requirements listed in 5.5 are missing from the specifying document, then the recommendations for the several variables shal
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09/12 03:35