Article 1. Milk Fat Or Butter Fat of California Food And Agricultural Code >> Division 15. >> Part 3. >> Chapter 5. >> Article 1.

As used in this article, "Reichert-Meissl number" means the number of milliliters of decinormal alkali which are required to neutralize the acidity of the distillate from five grams of fat treated in the manner specified in the regulations adopted by the director. Such regulations shall conform as closely as possible to the methods which are described in the book, entitled "Official and Tentative Methods of Analysis of the Association of Official Analytical Chemists," published from time to time by that association.

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.