Fire Safety Science Digital Archive

This note describes the effect on protein-based foam liquids of storage in aqueous solution under pressure for long periods. The study has shown that even after two years under these conditions, foams made from the liquids can give an adequate performance on petroleum fires. The same liquids stored in aqueous solution in open reinforced glass-fibre trays for very limited periods have been found to deteriorate rapidly. The results did not correlate satisfactorily with those of the foam stored under pressure, and this method is unlikely to be suitable for an accelerated ageing test.