30 CFR § 35.23 - Performance required for certification.

---
identifier: "/us/cfr/t30/s35.23"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 35.23 - Performance required for certification."
title_number: 30
title_name: "Mineral Resources"
section_number: "35.23"
section_name: "Performance required for certification."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "B"
subchapter_name: "TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS"
part_number: "35"
part_name: "FIRE-RESISTANT HYDRAULIC FLUIDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 957, 961."
regulatory_source: "Schedule 30, 24 FR 10201, Dec. 17, 1959, unless otherwise noted."
cfr_part: "35"
---


# 35.23 Performance required for certification.

To qualify as fire-resistant under the regulations of this part, a hydraulic fluid shall meet each performance requirement and stated in §§ 35.20(d), 35.21(d), and 35.22(d).