7 CFR § 58.642 - Quality control tests.

---
identifier: "/us/cfr/t7/s58.642"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 58.642 - Quality control tests."
title_number: 7
title_name: "Agriculture"
section_number: "58.642"
section_name: "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"
---


# 58.642 Quality control tests.

All mix ingredients shall be subject to inspection for quality and condition throughout each processing operation. Quality control tests shall be made on flow line samples as often as necessary to check the effectiveness of processing and sanitation and as an aid in correcting deficiencies. Routine analysis shall be made on raw materials and finished products to assure adequate composition, weight or volume control.