Negative pressure respirators unacceptable for isocyanate paints.

Archive Notice - OSHA Archive

NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

May 6, 1982

Air Purification Lab
U.S. Divers Company
3323 West Warner Avenue
Santa Ana, California 92702

Dear

This is in response to your letter of April 8, 1982, concerning respiratory protection against isocyanate containing paint sprays.

Ventilation for an anhydrous ammonia refrigeration system.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

June 13, 1990

The intervals between physical examinations for employees performing interior structural firefighting.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

January 29, 1991

Mr. Richard H. Timms Chief
Seneca Fire Department
City of Seneca
Post Office Box 4773
Seneca, South Carolina 29679

Dear Mr. Timms:

The M-17 gas mask may not be used by workers other than enlisted military personnel.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

April 21, 1986

Mr. Derek Mullins
Supervisor
Compliance Industrial Hygiene
The Industrial Commission of Arizona
P.O. Box 19070
Phoenix, Arizona 85005-9070

Dear Mr. Mullins:

This is in response to your letter of March 24, concerning the use of nonapproved M-17 gas masks.

Acceptable respirators for exposure to ethylene oxide; Acceptable respirators for exposure to ethylene oxide.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

November 13, 1984

Mr. John S. Fenerty
Director
Materials Management
Chestnut Hill Hospital
8835 Germantown Avenue
Philadelphia, Pennsylvania 19118-2767

Dear Mr. Fenerty:

Mr. Patrick Tyson has asked me to respond to your letter of October 29, concerning respiratory protection from ethylene oxide.

Acceptance of closed-circuit self-contained breathing apparatus for firefighting.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

March 24, 1987

Ivan W. Russell, Director
Occupational Safety and
Health Division
State of Minnesota
Department of Labor
and Industry
444 Lafayette Road
St. Paul, Minnesota 55101

Dear Mr. Russell:

South Carolina's regulatory procedures for single-use respirators.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

September 1, 1992

Mr. John P. Hale
Respirator Support Services
2028 Virts Lane
Jefferson, Maryland 21755

Dear Mr. Hale:

This is a final response to your letter of April 30 concerning the State of South Carolina's regulatory procedures for single-use respirators. Please accept our apology for the delay in this response.

Use of eyeglass inserts or spectacle kits inside respirator full facepieces.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

April 7, 1987

Mr. John P. Hale
Director
Respirator Programs
Darell Bevis Associates, Inc.
14640 Flint Lee Road, Suite D
Chantilly, Virginia 22021

Dear Mr. Hale:

This is in response to your letter of March 6, concerning the use of eyeglass inserts or spectacle kits inside respirator full facepieces.

Respiratory protection as it relates to oil fields

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

April 14, 1993

Mr. LeRoy H. Ernst
Managing Director
North Dakota Motor Carriers Association, Inc.
1031 East Interstate Avenue
Post Office Box 874
Bismarck, North Dakota 58502

Dear Mr. Ernst:

Pulmonary function testing training requirements and spirometer transmission of disease.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.