Paper and board; Accelerated ageing; Part 2 : Moist heat treatment at 90 degrees C and 25 % relative humidity
Описание (англ.):
Is based on work on printing and weiting papers, but may be used with discretion for other types of paper and board, The procedure is not recommended for papers such as resin-impregnated or varnish-treated papers which increase in physical strength on heating, and not applicable to certain electrical insulating, for which different conditions apply.