42 CFR 84.149 - Type C supplied-air respirator, demand and pressure demand class; minimum requirements.

§ 84.149 Type C supplied-air respirator, demand and pressure demand class; minimum requirements.
(a) Respirators tested under this section shall be approved only when used to supply respirable air at the pressures and quantities required.
(b) The manufacturer shall specify the range of air pressure at the point of attachment of the air-supply hose to the air-supply system, and the range of hose length for the respirator. For example, he might specify that the respirator be used with compressed air at pressures ranging from 280-550 kN/m.2 (40 to 80 pounds per square inch) with from 6 to 76 m. (15 to 250 feet) of air-supply hose.
(c) The specified air pressure at the point of attachment of the hose to the air-supply system shall not exceed 863 kN/m.2 (125 pounds per square inch gage).
(d)
(1) Where the pressure in the air-supply system exceeds 863 kN/m.2 (125 pounds per square inch gage), the respirator shall be equipped with a pressure-release mechanism that will prevent the pressure at the point of attachment of the hose to the air-supply system from exceeding 863 kN/m.2 (125 pounds per square inch gage).
(2) The pressure-release mechanism shall be set to operate at a pressure not more than 20 percent above the manufacturer's highest specified pressure. For example, if the highest specified pressure is 863 kN/m.2 (125 pounds per square inch), the pressure-release mechanism would be set to operate at a maximum of 1,035 kN/m.2 (150 pounds per square inch).

Title 42 published on 2013-10-01

no entries appear in the Federal Register after this date.

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United States Code
U.S. Code: Title 29 - LABOR

29 U.S. Code § 301 to 309 - Repealed.

§ 651 - Congressional statement of findings and declaration of purpose and policy

§ 652 - Definitions

§ 653 - Geographic applicability; judicial enforcement; applicability to existing standards; report to Congress on duplication and...statutory rights, duties, or liabilities of employers and employees unaffected

§ 654 - Duties of employers and employees

§ 655 - Standards

§ 656 - Administration

§ 657 - Inspections, investigations, and recordkeeping

§ 658 - Citations

§ 659 - Enforcement procedures

§ 660 - Judicial review

§ 661 - Occupational Safety and Health Review Commission

§ 662 - Injunction proceedings

§ 663 - Representation in civil litigation

§ 664 - Disclosure of trade secrets; protective orders

§ 665 - Variations, tolerances, and exemptions from required provisions; procedure; duration

§ 666 - Civil and criminal penalties

§ 667 - State jurisdiction and plans

§ 668 - Programs of Federal agencies

§ 669 - Research and related activities

§ 669a - Expanded research on worker health and safety

§ 670 - Training and employee education

§ 671 - National Institute for Occupational Safety and Health

§ 671a - Workers’ family protection

§ 672 - Grants to States

§ 673 - Statistics

§ 674 - Audit of grant recipient; maintenance of records; contents of records; access to books, etc.

§ 675 - Annual reports by Secretary of Labor and Secretary of Health and Human Services; contents

§ 676 - Omitted

§ 677 - Separability

§ 678 - Authorization of appropriations

U.S. Code: Title 30 - MINERAL LANDS AND MINING

Title 42 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 42 CFR 84 after this date.

  • 2013-11-19; vol. 78 # 223 - Tuesday, November 19, 2013
    1. 78 FR 69361 - Development of Inward Leakage Standards for Half-Mask Air-Purifying Particulate Respirators
      GPO FDSys XML | Text
      DEPARTMENT OF HEALTH AND HUMAN SERVICES, Centers for Disease Control and Prevention, HHS
      Reopening of comment period.
      Stakeholder comments to the questions included in the notice of September 4, 2013 (78 FR 54432) must be received by 11:59 p.m. ET on December 31, 2013.
      42 CFR Part 84