CLASSIFICATION DIGEST 2.0
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Classification Digest 2.0→Class Code List→Class Code 1438→Phraseology and Description
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Class Code Information

Phraseology

Smelting, Sintering or Refining – NOC – Metals – Not Iron or Lead & Drivers
Note:  

Code 1452 “Ore Milling & Drivers,” Code 1430 “Smelting, Sintering or Refining Lead & Drivers,” and Code 1438 shall not be assigned to the same risk unless the operations described by these classifications are conducted as separate and distinct businesses.

        

Description

Code 1438 applies to employers engaged in extraction of non-ferrous metal from ore or ore concentrates. This process begins with receiving and stockpiling of ore followed by crushing, washing and screening. Various steps such as milling, concentration or amalgamation may be performed before sintering the ore in rotary kilns or other types of furnaces. The sintered ore is then crushed in preparation for the actual smelting or reduction process. The resulting molten metal is cast into ingots and impurities may be removed by further refining in a furnace.

Modern technology involves refinement in metal extraction processes. For example, acid or caustic leaching are common in the extraction of metals such as aluminum or uranium while other metals such as copper or manganese may involve electrolysis. These variations are included within the scope of this classification.


This classification additionally contemplates porcelain frit or steel grit manufacturing.

Assignment by Analogy

No Information

Operations to be Separately Rated

  1. Manufacturing:
    1. Coke.  Refer to Code 1470 “Alcohol Mfg. – Wood & Drivers.”
    2. Solder:
      1. In paste and flux form.  Refer to Code 4557 “Ink  Mfg.”
      2. In bars that are melted and poured.  Refer to Code 3085 “Foundry – Non-Ferrous.”
      3. In wire form, extruded by hydraulic press.  Refer to Code 1925 “Die Casting Mfg.”

  2. Furnace erection.  Refer to Code 5057 “Iron or Steel Erection – NOC – All Operations to Completion.”

  3. Mining.  Refer to Code 1624 “Quarry – NOC & Drivers” or Code 1170 “Mining – NOC – With Shafts, Tunnels or Drifts & Drivers.”

  4. Ore milling by crushing, concentration or amalgamation.  Refer to Code 1452 “Ore Milling & Drivers.”     

  5. Quarrying.  Refer to Code 1624 “Quarry – NOC & Drivers.”

  6. Reclaiming lead in the process of smelting, sintering or refining etals in any form or quantity.  Refer to Code 1430 “Smelting, Sintering or Refining Lead & Drivers.”

  7. Slag excavation and crushing.  Refer to Code 4000 “Sand or Gravel Digging & Drivers.”

  8. Smelting by an electric process (no blast furnace) to produce carborundum, artificial carbon or graphite, (using coke and other ingredients), or other electric furnace products.  Refer to Code 1439 “Smelting – Electric Process.”

  9. Smelting, sintering or refining lead.  Refer to Code 1430 “Smelting, Sintering or Refining Lead & Drivers.”

  10. Steel making in electric or open-hearth furnaces and the Bessemer or crucible process.  Refer to Code 3004 “Iron or Steel Mfg. – Steelmaking & Drivers.”

Industry Group

All Other Manufacturing