• Part Number:
    1910
  • Part Number Title:
    Occupational Safety and Health Standards
  • Subpart:
    1910 Subpart Z
  • Subpart Title:
    Toxic and Hazardous Substances
  • Standard Number:
  • Title:
    Appendix A to § 1910.1024-Control Strategies To Minimize Beryllium Exposure (Non-Mandatory)
  • GPO Source:

Paragraph (f)(2)(i) of this standard requires employers to use one or more of the control methods listed in paragraph (f)(2)(i) to minimize worker exposure in each operation in a beryllium work area, unless the operation is exempt under paragraph (f)(2)(ii). This appendix sets forth a nonexhaustive list of control options that employers could use to comply with paragraph (f)(2)(i) for a number of specific beryllium operations.

TABLE A.1—EXPOSURE CONTROL RECOMMENDATIONS

Operation Minimal control strategy * Application group
Beryllium Oxide Forming (e.g., pressing, extruding). For pressing operations: .............................................................................................. Primary Beryllium Production; Beryllium Oxide Ceramics and Composites.
  1. Install local exhaust ventilation (LEV) on oxide press tables, oxide feed drum breaks, press tumblers, powder rollers, and die set disassembly stations;
  2. Enclose the oxide presses; and
  3. Install mechanical ventilation (make-up air) in processing areas
For extruding operations:
  1. Install LEV on extruder powder loading hoods, oxide supply bottles, rod breaking operations, centerless grinders, rod laydown tables, dicing operations, surface grinders, discharge end of extrusion presses;
  2. Enclose the centerless grinders; and
  3. Install mechanical ventilation (make-up air) in processing areas.
Chemical Processing Operations (e.g., leaching, pickling, degreasing, etching, plating). For medium and high gassing operations: .................................................................. Primary Beryllium Production; Beryllium Oxide Ceramics and Composites; Copper Rolling, Drawing and Extruding.
  1. Perform operation with a hood having a maximum of one open side; and
  2. Design process so as to minimize spills; if accidental spills occur, perform immediate cleanup.
Finishing (e.g., grinding, sanding, polishing, deburring).
  1. Perform portable finishing operations in a ventilated hood. The hood should include both downdraft and backdraft ventilation, and have at least two sides and a top.
  2. Perform stationary finishing operations using a ventilated and enclosed hood at the point of operation. The grinding wheel of the stationary unit should be enclosed and ventilated.
Secondary Smelting; Fabrication of Beryllium Alloy Products; Dental Labs.
Furnace Operations (e.g., Melting and Casting).
  1. Use LEV on furnaces, pelletizer; arc furnace ingot machine discharge; pellet sampling; arc furnace bins and conveyors; beryllium hydroxide drum dumper and dryer; furnace rebuilding; furnace tool holders; arc furnace tundish and tundish skimming, tundish preheat hood, and tundish cleaning hoods; dross handling equipment and drums; dross recycling; and tool repair station, charge make-up station, oxide screener, product sampling locations, drum changing stations, and drum cleaning stations
  2. Use mechanical ventilation (make-up air) in furnace building
Primary Beryllium Production; Beryllium Oxide Ceramics and Composites; Nonferrous Foundries; Secondary Smelting.
Machining ............................. Use
  1. LEV consistent with ACGIH® ventilation guidelines on deburring hoods, wet surface grinder enclosures, belt sanding hoods, and electrical discharge machines (for operations such as polishing, lapping, and buffing);
  2. high velocity low volume hoods or ventilated enclosures on lathes, vertical mills, CNC mills, and tool grinding operations;
  3. for beryllium oxide ceramics, LEV on lapping, dicing, and laser cutting; and
  4. wet methods (e.g., coolants).
Primary Beryllium Production; Beryllium Oxide Ceramics and Composites; Copper Rolling, Drawing, and Extruding; Precision Turned Products.
Mechanical Processing (e.g., material handling (including scrap), sorting, crushing, screening, pulverizing, shredding, pouring, mixing, blending).
  1. Enclose and ventilate sources of emission;
  2. Prohibit open handling of materials; and
  3. Use mechanical ventilation (make-up air) in processing areas
Primary Beryllium Production; Beryllium Oxide Ceramics and Composites; Aluminum and Copper Foundries; Secondary Smelting.
Metal Forming (e.g., rolling, drawing, straightening, annealing, extruding).
  1. For rolling operations, install LEV on mill stands and reels such that a hood extends the length of the mill;
  2. For point and chamfer operations, install LEV hoods at both ends of the rod;
  3. For annealing operations, provide an inert atmosphere for annealing furnaces, and LEV hoods at entry and exit points;
  4. For swaging operations, install LEV on the cutting head;
  5. For drawing, straightening, and extruding operations, install LEV at entry and exit points; and
  6. For all metal forming operations, install mechanical ventilation (make-up air) for processing areas.
Primary Beryllium Production; Copper Rolling, Drawing, and Extruding; Fabrication of Beryllium Alloy Products.
Welding ................................ For fixed welding operations: .......................................................................................
  1. Enclose work locations around the source of fume generation and use local exhaust ventilation; and
  2. Install close capture hood enclosure designed so as to minimize fume emission from the enclosure welding operation.

For manual operations:

  1. Use portable local exhaust and general ventilation
Primary Beryllium Production; Fabrication of Beryllium Alloy Products; Welding.

* All LEV specifications should be in accordance with the ACGIH® Publication No. 2094, "Industrial Ventilation—A Manual of Recommended Practice" wherever applicable.

 

[82 FR 2742-2743, Jan. 9, 2017]