
Environmental testing. Tests. Test N. Change of temperature
出版:British Standards Institution

專家解讀視頻
Gives three methods of test for the determination of the effect on a specimen of a change of temperature or a succession of changes of temperature. Tests Na and Nc are with a rapid change of temperature; Test Nb is with a specified rate of change.
? British Standards Institution 2013
Amendment notes:
AMD 5435 published 31 March 1987
IEC 60068-2-14 Ed. 5.0 - Identical