Fire Safety Science Digital Archive

This note describes further experimental work on the compatibility of dry powders and protein foam liquids based on a study of the critical rates of various foam liquids on petrol to which various dry powders have been added, and on the time for a fire to destroy a foam blanket on which various powders have been sprinkled. The main conclusions of other workers are summarised, and suggestions for a suitable specification test for foam-dry powder compatibility are made.