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Classification Digest 2.0→Class Code List→Class Code 4112→Phraseology and Description
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Class Code Information

Phraseology

Incandescent Lamp Mfg.

Description

Code 4112 applies to employers engaged in manufacturing incandescent light bulbs.  “Incandescent” refers to a light-producing device that contains a filament.  When the filament is heated by an electric current, light is produced.  This classification also applies to manufacturing all incandescent light bulbs regardless of the size or wattage of the bulb.
Materials that may be used in the manufacturing of incandescent light bulbs include blown glass bulbs or globes, glass tubing, tungsten wire, metal bases, shellac and halogen, xenon, argon and/or krypton gases.  The manufacturing of the following products is additionally contemplated by this classification: fluorescent tubes, X-ray tubes and television or cathode-ray tubes.

Includes the repair of cathodes and electrical neon signs when performed in the shop.

Assignment by Analogy

No Information

Operations to be Separately Rated

  1. Manufacturing:
    1. Ballasts for fluorescent lighting.  Refer to Code 3179 “Electrical Apparatus Mfg. – NOC.”
    2. Decorative string lights for indoor or outdoor use and fiber optic cable.  Refer to Code 3681 “Television, Radio, Telephone or Telecommunication Device Mfg. – NOC.” 
    3. Electric lamp:
      1. Assembly and finishing.  Refer to Code 3190 “Electric Lighting Fixture, Lantern or Lamp Mfg. – Assembly & Finishing.”
      2. All other operations.  Refer to Code 3191 “Electric Lighting Fixture, Lantern or Lamp Mfg. – All Other Operations.”

Industry Group

All Other Manufacturing