UCLA General Services
|[pic] |Facilities Management – Sheet Metal |
| |Job Safety Analysis – Arc Welding |
| |501 Westwood Plaza, 4th Floor • Los Angeles, CA 90095 |
| |Phone: 310-825-5689 • Fax: 310-825-7076 • ehs.ucla.edu |
|Picture of task/equipment: |Task: |Stick Welding (SMAW) |
|[pic] |Name of Shop or Dept: |FM Sheet Metal |
| |Job Title(s): |Sheet Metal Craftsman, Welder |
| |Analyzed by: |N. Mansky/G. Jasso, J. Cordoro |
| |Date: |4/22/2013 |
|Required PPE: |
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|Safety Glasses Leathers Work Boots Welding Respirator Hood Earplugs |
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|Required/Recommended Trainings: |
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|Half-face Respirator Training |
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|TASK |
|HAZARDS |
|CONTROLS |
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|Stick Welding on various metals |
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|[pic] |
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|Burns to eyes & skin |
|from molten metal |
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|Infrared & ultraviolet radiation |
|burns to eyes & skin from arc flash |
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|Respiratory irritation and damage from fume inhalation |
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|Eye damage from flying slag particles when chipping |
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|Surround area with a welding curtain. |
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|Wear welding clothing which covers neck, torso, arms and legs. |
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|Wear leather gloves and work shoes. |
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|Wear welding cap when welding overhead. |
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|Ventilate the space using natural air draft, exhaust fan, or Welding Fume Extractor. |
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|Wear EH&S-issued respirator with North P100 cartridges or P100/Acid Gas cartridges (See attached guide). |
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|Welding Hood with proper shade number (See attached guide). |
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|Wear safety glasses |
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|Write “Hot” with chalk on welded pieces and welding table |
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Respirator Cartridge Selection Guide for all Welding Operations
Cartridge Type Welding Type Rod Examples
| | | |
|[pic] |TIG, MIG, SMAW (RODS NOT CONTAINING FLUORIDES) |Stainless, Galvanized, Aluminum, Steel, |
| | |Brass, etc. |
|North P100 | | |
| | | |
| | | |
| | | |
| |SMAW (RODS CONTAINING FLUORIDES) |Lincoln Excalibur, ArcAloy, Hobart Group|
|[pic] | |B & D, etc. |
|North Acid Gas Combo | | |
* Fluoride content info is listed on electrode rod Material Safety Data Sheets
Hood Lens shade specifications for SMAW
| | | |OSHA Minimum Protective |ANSI & AWS |
|Operation |Electrode Size – inch (mm) |Arc Current (Amperes) |Shade Number |Shade Number |
| | | | |Recommendations* |
| |Less than 3/32 (2.4) |Fewer than 60 |7 |- |
|Shielded Metal Arc Welding | | | | |
|(SMAW) | | | | |
| |3/32-5/32 (2.4-4.0) | | | |
| | |60-160 |8 |10 |
| |More than 5/32-1/4 (4.0-6.4) | | | |
| | |More than 160-250 |10 |12 |
| |More than 1/4 (6.4) |More than 250-550 |11 |14 |
Documentation of JSA Training (signature of all users is required)
• Shop must provide training to personnel specific to the hazards involved in working with this equipment.
• Shop must provide employees with a copy of this JSA.
• Shop must ensure that personnel have attended appropriate safety training according to this JSA
I have read and understand the content of this JSA:
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