7 CFR § 58.442 - Laboratory and quality control tests.

---
identifier: "/us/cfr/t7/s58.442"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 58.442 - Laboratory and quality control tests."
title_number: 7
title_name: "Agriculture"
section_number: "58.442"
section_name: "Laboratory and quality control tests."
chapter_name: "AGRICULTURAL MARKETING SERVICE (STANDARDS, INSPECTIONS, MARKETING PRACTICES), DEPARTMENT OF AGRICULTURE"
subchapter_number: "C"
subchapter_name: "REQUIREMENTS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG PRODUCTS INSPECTION ACT"
part_number: "58"
part_name: "GRADING AND INSPECTION, GENERAL SPECIFICATIONS FOR APPROVED PLANTS AND STANDARDS FOR GRADES OF DAIRY PRODUCTS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 1621-1627."
regulatory_source: "23 FR 9410, Dec. 5, 1958, unless otherwise noted. Redesignated at 42 FR 32514, June 27, 1977, and further redesignated at 46 FR 63203, Dec. 31, 1981."
cfr_part: "58"
---


# 58.442 Laboratory and quality control tests.

(a) *Chemical analyses*—(1) *Milkfat and moisture.* One sample shall be tested from each vat of the finished cheese to assure compliance with composition requirements.

(2) *Test method.* Chemical analysis shall be made in accordance with the methods described in Official Methods of Analysis of the Association of Official Analytical Chemists as specified in the appropriate standards of identity, the latest edition of Standard Methods or by other methods giving equivalent results.

(b) *Weight or volume control.* Representative samples of the finished product shall be checked during the packaging operation to assure compliance with the stated net weight on the container of consumer size packages.