7 CFR § 28.601 - Official cotton standards for fiber fineness and maturity.

---
identifier: "/us/cfr/t7/s28.601"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 28.601 - Official cotton standards for fiber fineness and maturity."
title_number: 7
title_name: "Agriculture"
section_number: "28.601"
section_name: "Official cotton standards for fiber fineness and maturity."
chapter_name: "AGRICULTURAL MARKETING SERVICE (STANDARDS, INSPECTIONS, MARKETING PRACTICES), DEPARTMENT OF AGRICULTURE"
subchapter_number: "A"
subchapter_name: "COMMODITY STANDARDS AND CONTAINER REQUIREMENTS"
part_number: "28"
part_name: "COTTON CLASSING, TESTING, AND STANDARDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
regulatory_source: "22 FR 10930, Dec. 28, 1957, unless otherwise noted."
cfr_part: "28"
---


# 28.601 Official cotton standards for fiber fineness and maturity.

The official cotton standards of the United States for fiber fineness and maturity shall be the measure of such qualities, in combination, provided by air flow instrument tests in terms of micronaire readings in accordance with the procedure specified in § 28.603.