"Approval of Respiratory Protective Devices: Subpart N: Chemical-cartridge respirators; requirements and tests."

This standard describes the general requirements and tests for chemical cartridge respirators which are not described in Subpart L. This includes test duration, general test atmosphere values and parameters. See detailed view for additional notes.

"Approval of Respiratory Protective Devices: Subpart N: Requirements for end-of-service-life indicator."

This standard describes the requirements for end-or-service-life indicators for special use respirators. This includes satisfactory indicator change or other obvious warning before 1 ppm vinyl chloride penetration occurs. See detailed view for additional notes.

"Approval of Respiratory Protective Devices: Subpart N: Labeling requirements"

This standard describes the requirements for warning labels placed on each gas mask, chemical-cartridge respirator, and powered air-purifying respirator, and on the label of each canister and cartridge, alerting the wearer to the need for a fitting test in accordance with the manufacturer's facepiece fitting instructions, providing service life information, providing specific instructions for disposal, and advising that the wearer may communicate to NIOSH any difficulties that may be experienced in the design and performance of any gas mask, chemical-cartridge respirator, or powered air-purifying respirator. See detailed view for additional notes.

"Approval of Respiratory Protective Devices: Subpart D: Approval and Disapproval"

(a) The Institute shall issue certificates of approval pursuant to the provisions of this subpart only for individual, completely assembled respirators which have been examined, inspected, and tested, and which meet the minimum requirements set forth in subparts H through L of this part, as applicable. (b) The Institute will not issue certificates of approval for any respirator component or for any respirator subassembly. (c) The Institute shall not issue an informal notification of approval. However, if the application for approval, submitted in accordance with §84.11, states that the submitted respirator and component parts are only prototypes, the Institute will examine, inspect, and test such respirator and component parts in accordance with the provisions of this part. If, upon completion of such examinations, inspections and tests, it is found that the prototype meets the minimum requirements set forth in this part, the Institute may inform the applicant, in writing, of the results of the examinations, inspections, and tests, and may require him to resubmit respirators and component parts made on regular production tooling, with no operations included which will not be incorporated in regular production processing, for further examination, inspection, and testing, prior to issuance of the certificate of approval. (d) Applicants required to resubmit respirators and component parts made on regular production tooling, with no operation included which will not be incorporated in regular production processing, shall be charged fees in accordance with subpart C of this part.

"Approval of Respiratory Protective Devices: Subpart O: Applicability to new and previously approved CCERs"

This standard updates the agency’s requirements for testing and certification of closed-circuit escape respirators. See detailed view for additional notes.