TITLE:

ES&H Manual

 

DOCUMENT ID:

6122 Appendix T2

Hot Work Personal Protective Equipment (PPE)

 

 

1.0          Purpose

 

Jefferson Lab recognizes that hot work exposes workers to certain recognized hazard issues, some of which can be mitigated through the use of appropriate personal protective equipment (PPE).  This appendix provides information on how to:

 

·       Determine the appropriate PPE, and

·       Obtain it.

 

2.0          Scope

 

Each authorized hot work station poses its own unique hazard(s).  Required PPE, over and above that listed within this document, is defined within a system or area’s Hot Work Permit or Operational Safety Procedure (OSP).

 

PPE does not take the place of engineered and administrative control measures; rather it is used in conjunction with them to increase safety at Jefferson Lab.

 

This appendix applies to Jefferson Lab’s minimum hot work PPE requirements.  See ES&H Manual Chapter 6620 Personal Protective Equipment Program for guidance regarding the use of additional “standard PPE.” 

 

Certain hot work generates airborne contaminates that may not be adequately removed by engineered controls (i.e. local exhaust ventilation).  Contact Industrial Hygiene to perform a hazard evaluation to determine appropriate controls.

 

The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6122 Hot Work (i.e. Welding, Cutting, Brazing, and Grinding) Safety Program.

 

3.0          Responsibilities

NOTE:           Management authority may be delegated at the discretion of the responsible manager.

 

3.1            Qualified Hot Work Operator

·       Inspect PPE before and after use.  Dispose of damaged items appropriately.

·       Wear appropriate PPE while working.

·       Frequently change or alternate gloves and other protective clothing to avoid perspiration, oil and grease accumulation.

 

3.2            Supervisor/Subcontracting Officer’s Technical Representative (SOTR)/Sponsor

·       Ensure specialized PPE, which meets code and compliance requirements, is available and utilized by Qualified Hot Work Operators. 

 

4.0          Process Steps

 

Unless otherwise stated the Qualified Hot Work Operator uses the PPE as outlined below. 

 

4.1            Welding Helmet/Welding Goggle/Face Shields:

Compliant with “American National Standards Institute (ANSI) Z87.1 Practice for Occupational and Educational Eye and Face Protection.”

 

4.1.1       Safety Lenses:

These lenses provide eye protection from non-ionizing radiation emitted from the welding arc.  Minimum requirements are:

·       Lenses comply with ANSI/ASC Z49.1-2005 Safety in Welding, Cutting, and Allied Processes.

·       Frames/lenses are compatible with the welding helmet.

·       Identifiable manufacturer's marking, and shade number are legible.

·       Adequate outer cover protection for lens.

 

Operation

Protectors

Electrode Size in. (mm)

Arc Current (Amperes)

Typical Filter Lens Shade

Shielded Metal Arc Welding (SMAW)

Welding Helmet

<3/32 (2.4)

3.32-5/32 (2.4-4.0)

5.32-1/4 (4.0-6.4)

>1/4 (6.4)

< 60

60-160

160-250

250-550

7

8-10

10-12

11-14

Carbon Arc Welding (CAW)

Welding Helmet

 

 

14

Gas Metal Arc Welding

And Flux Cored Arc Welding (FCAW)

Welding Helmet

 

< 60

60-160

160-250

250-550

7

10-11

10-12

10-14

Gas Tungston Arc Welding (GTAW

Welding Helmet

 

<50

50-150

150-500

8-10

8-12

10-14

Plasma Arc Cutting (PAC)/Torch Cutting

Welding Goggle,

Faceshield, or Helmet

 

<20

20-40

40-60

60-80

80-300

300-400

400-800

2-4

5

6

8

8-9

9-12

10-14

Torch Brazing

Welding Goggle,

Faceshield, or Helmet

 

 

2 to 4

Torch Soldering

Welding Goggle,

Faceshield, or Helmet

 

 

2 to 4

Laser Welding – Contact the Laser Safety Officer

 

 

 

 

 

NOTE:  The above listed shade designations are not authorized for use with lasers.  See ES&H Manual Chapter 6410 Appendix T3 Laser Personal Protective Equipment to determine appropriate protection for this type of work.

 

4.2            Other Specialized PPE

All specialized PPE used for hot work is made from leather or similar flame-resistant material.  Items include:

·       Gloves

·       Apron

·       Leggings

·       Arm Covering (e.g. cape, sleeves, or shoulder covers)

 

4.3            Respiratory Protection

Respiratory protection may be required per your work control document, or as determined by a hazard evaluation, contact Industrial Hygiene for review.

 

4.4            Safety Shoes

Wear appropriate foot protection. 

 

4.5            Appropriate Work Attire

Wear appropriate work attire made of natural fibers, such as cotton, to minimize the chance of burns from welding slag, sparks, and radiated heat:

·       Long pants (no cuffs)

·       Long sleeved shirt (no roll-ups)

 

5.0          Obtaining PPE

 

Required PPE (either by work process or as documented in the work control document) is available through Webstock, the stockroom, your supervisor, or Industrial Hygiene.  (See ES&H Manual 6620 Appendix T1 Selecting, Acquiring, Training, and Caring for Personal Protective Equipment for further information.)

 

6.0          Revision Summary

 

Revision 1.1 – 09/14/12 – Clarification made to Welding Helmet/Welding Goggle/Face Shields requirements

Revision 1 – 04/14/11- Update to reflect current laboratory operations.

 

 

 

 

ISSUING AUTHORITY

TECHNICAL

POINT-OF-CONTACT

APPROVAL DATE

EXPIRATION DATE

REV.

 

 

ESH&Q Division

Mike Martin

04/14/11

04/14/16

1.1

 

This document is controlled as an on-line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility to ensure that the document is the same revision as the current on line file.  This copy was printed on 9/14/2012.