7 Pa. Code § 59a.21 – Standards.

(a) Standards for milk and milk products. The standards that apply to milk and milk products are as set forth in section 7 of the Grade ‘‘A’’ PMO, in Table 1, regarding chemical, physical, bacteriological, and temperature standards.
(b) Standards for milk for manufacturing and manufactured dairy products. The standards that apply to milk for manufacturing and manufactured dairy products are as set forth in Subchapter C (relating to production and processing of milk for manufacturing purposes). Other fluid derivatives of milk, including condensed milk and milk products, nonfat dry milk and milk products, condensed whey and whey products, and buttermilk and buttermilk products, may be processed according to the standards and requirements for manufactured grade milk and milk products provided that they meet all applicable requirements of Subchapter C.
(c) Standards for ice cream and frozen dessert mixes. Frozen desserts—vanilla, chocolate, and one other flavor when applicable—shall be tested at least monthly for the standard plate count and coliform group. Frozen desserts mix shall be tested at least monthly for the standard plate count, coliform group, and phosphatase activity. The following are the specific standards for ice cream and frozen dessert mixes:
1. (1) Temperature. Cooled to 45° F (7° C) or less and maintained thereat.
2. (2) Bacterial limits applicable to all but cultured products. 50,000 per gram.
3. (3) Coliform. Not to exceed 10 per gram. When fruit or nuts and flavoring are added after pasteurization, the count shall not exceed 20 per gram.
4. (4) Phosphatase. Less than 350 milliunits per liter by approved electronic phosphatase procedures.
5. (5) Drugs. On test of milk ingredients, no positive results on drug residue detection methods as referenced in section 7 of the Grade ‘‘A’’ PMO, Table 1, regarding chemical, physical, bacteriological and temperature standards.
(d) Reference to applicable provisions of the Grade ‘‘A’’ PMO. The provisions of the Grade ‘‘A’’ PMO and, in particular, section 7 and Appendix N of that document regarding examination of milk and milk products and drug residue testing and farm surveillance, respectively, apply to this section to the extent described in § 59a.11 (relating to adoption of Grade ‘‘A’’ PMO).