A test specimen and a apiece of control fabric are simultaneously exposed to oxides of nitrogen in an atmosphere which is maintained at 87.5 % 2.5 % relative humidity and at temperature of 40 °C 1 °C until the control fabric shows a colour change corresponding to that of a reference of fading. The exposure/measurement cycle is repeated until the specimen shows a definite colour change or for a prescribed number of cycles.
WITHDRAWN
ISO 105-G04:1989
95.99
Withdrawal of Standard
May 26, 2016
PUBLISHED
ISO 105-G04:2016
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