Section 38152 Of Article 1. Milk Fat Or Butter Fat From California Food And Agricultural Code >> Division 15. >> Part 3. >> Chapter 5. >> Article 1.

. Milk fat or butterfat is the fat of milk. It shall have a Reichert-Meissl number not less than 24 and a specific gravity not less than 905/1000. In determining the specific gravity, milk fat at 40 degrees centigrade shall be compared with water at 40 degrees centigrade.