Applicable OSHA standards and safety considerations for microwave device use in a laboratory

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.

August 8, 2002

Gary Login, D.M.D., D.M.Sc.
Assistant Professor of Oral Pathology
Harvard School of Dental Medicine
209 Harvard Street, Suite 402
Brookline, MA 02446

Dear Dr. Login:

Acceptability of modifying a standard on/off switch to provide lockout capability to a machine.

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 13, 2003

Mr. Thomas L. Jones
Senior Safety Consultant
Accordia
1014 Vine Street, Suite 1100
Cincinnati, Ohio 45202-1195

Dear Mr. Jones:

Use of portable vacuum cleaners for cleaning up aluminum and wood dust.

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.

August 22, 2003

Ms. Nancy LeClerc
Safety and Environmental Coordinator
Marvin Windows & Doors
14835 Highway 17 West
Grafton, ND 58237

Dear Ms. LeClerc:

Electrical safety requirements for rechargeable racks for paging transmitters.

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 12, 2003

Mr. Trevor J. Sams
756, 132nd St. Circle, NE
Bradenton, FL 34212

Electrical equipment approved by a NRTL is acceptable to OSHA.

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 [11], 2004

Mr. Mark Pendlebury
President
Penmar Automation, Inc.
1151 Gorham Street, Unit 18
Newmarket, Ontario, Canada L3Y 7V1

Dear Mr. Pendlebury:

Acceptability of locking switches in the closed (on) position for transformers attached to the main bus duct 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.

April 5, 2004

Mr. Lee Roop
73 Dasher Avenue
Bear, DE 19701

Dear Mr. Roop:

Fixed Wiring in Research Facilities and High Voltage Cable Tray Systems at Department of Energy (DOE) Research Laboratories

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 31, 2004

 

 

Electrical equipment grounding requirements on concrete floors.

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 26, 2003

Mr. Thomas M. Krena
Corporate Risk Prevention Manager
P.O. Box 2846
Greenville, SC 29602

Dear Mr. Krena:

Use of personal cooling fans listed for "residential use only" in an industrial setting.

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.

February 1, 2005

Mr. Ed Stone
Director of Human Resources
Signature Custom Cabinetry, Inc.
434 Springville Road
Ephrata, PA 17522

Dear Mr. Stone:

Installation and use of electrical equipment must be consistent with NRTL intructions for that equipment.

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.

August 26, 2003

Mr. Joseph J. Widman
Design Solution Specialist
Honeywell
4263 Monroe Street
Toledo, Ohio 43606

Dear Mr. Widman: