P-T-1544A, FEDERAL SPECIFICATION: TEST KIT (DETERGENT CONCENTRATION AND WATER HARDNESS) (28-NOV-1975) [NO S/S DOCUMENT]

P-T-1544A, FEDERAL SPECIFICATION: TEST KIT (DETERGENT CONCENTRATION AND WATER HARDNESS) (28-NOV-1975) [NO S/S DOCUMENT]., This specification covers one type of test kit and one grade of refill solution for use with commercial dishwashing machines.