Social & Preventive Medicine Pasteurization is a preventive measure of public health. The quality of post pasteurized milk is tested by: A Phosphatase test B Methylene blue test C Catalase test D Oxidase test 💡 Explanation Pasteurization is a preventive measure of public health. The quality of post pasteurized milk is tested by: ✓ Correct Answer: A. Phosphatase test