Special regulations SR (series). 742-507-7. Inspection of supplies and equipment: Serviceability standard for bomb, incendiary, 4-pound, AN-M50A2 and AN-M50A3, bomb, incendiary oil, IM, 6-pound, AN-M69, and bomb, incendiary oil, NP-6 e-pound, M69; Mar. 17, 1953.