Fire Safety Science Digital Archive

Maximum permissible oxygen concentrations for the prevention of explosions have been determined for phenol-formaldehyde resin and diphenylol propane dusts. Nitrogen was used as the diluent gas with both dusts and carbon dioxide was used with phenol-formaldehyde resin only. The values obtained in the work are compared with those obtained in the standard furnace test and with those obtained with a spark tube apparatus. The results are also considered for provision of guidance for application to the safe and economical working of industrial plant.