Identification Checklist for Precious Metals

Identification Checklist for Precious Metals

This Identification Check List for Precious Metals sets up a general basis for identifying types and grades of precious metals scrap by the scrap processor who will be familiar both to the precious metals refiner and to the plants generating precious metals scrap.
By checking this identification list, the scrap processor gives the refiner a fairly accurate conception of the material the processor has on hand and offers a basis for the refiner to quote an estimated price for the material. Due to the high values and the constantly changing character of precious metal scrap, it is often the practice in the industry to require a sample to be submitted before giving refining schedules.
I. Scrap Sources REFINED SILVER METAL — 99.9 MIN. PERCENT Silver-bearing materials: Anodes Assemblies—Electrical Batteries Silver/Copper Plated Silver/Cadmium Silver/Zinc Silver/Magnesium Blanking Scrap—Punchings Brazing Alloys Brushes—Electric Motors Bullion Chemical Salts Clad Bi-Metal Parts Coin Silver Contacts Dental Amalgam Films Industrial X-Ray Medical X-Ray Lithographic Photographic Negatives Filters—Plating Flake—From Hypo Solution Recovery Systems Hooks—Plating—Nodules Jewelry Sweeps Paints—Paste Paper–Reproduction Plated Parts—Electrical— Electronic Plated Serving Pieces Plated Utensils Plated Wire Powders—Granulated Punchouts Relays—Electrical Resins Silver Lined Bearings—Diesel Locomotives and Aircraft Sludges—Plating and Precipitates Solutions—Plating Sterling Silver Tin Lead Alloys—Contaminated Turnings Wave Guides Wiping Rags
a) REFINED GOLD METAL — 99.5 MIN. PERCENT REFINED GOLD SPONGE — 99.5 MIN. PERCENT Gold-bearing materials: Brazing Alloys Clad Metal Parts Contacts Dental Alloys Dental Scrap Dental Sweeps and Grindings Diodes Filled Scrap Filters–Plating Flakes Flashings Foil Hooks—Plating—Nodules Jewelry Scrap Jewelry Sweeps and Grindings Paints and Paste Peelings Placer Gold Plated Parts—Electrical Plated Wire Powders Printed Circuit Boards Printed Circuit Boards with Components Punchouts Resins—Plating Salts—Chemical Sludges—Plating Solutions Sponge Tin Lead Alloys— Contaminated Transistors Wiping Rags – Wire
b)  REFINED PALLADIUM METAL—99.9 MIN. PERCENT REFINED PALLADIUM SPONGE— 99.9 MIN. Palladium-bearing materials: Catalysts Chemical Salts Clad Materials Contact Points Dental Alloys Dental Scraps Dental Sweeps Jewelry Scrap (Sweeps) Paste Plated Parts Powders Relays—Electrical Sludges Solutions Wire
c) REFINED PLATINUM METAL—99.9 MIN. PERCENT REFINED PLATINUM SPONGE— 99.9 MIN. PERCENT Platinum-bearing materials: Catalysts Chemicals Clad Materials Contacts Dental Alloys Dental Scrap Dental Sweeps, Grindings Jewelry Scrap Jewelry Sweeps Laboratory Ware Magneto Points Powders and Paste Solutions—Plating Spark Plugs—Aircraft Thermocouple Wire Scrap containing combinations of precious metals (gold, silver, platinum and palladium): Assemblies—Components Bullion Carbon Catalysts Chemicals Chips Drillings Electronic Scrap High Temperature Resistant Alloys Paints Paste Powders Relays—Electrical Resins Ribbons Rings Salts Solutions Sweeps Telephone Switching Scrap Thick Film Wire

II. SCRAP CATEGORIES

A. Solution

  • Acid
  • Basic
  • Matrix if known

B. Resin

C. Sludges

D. Burnable Material

  • Carbon
  • Filters
  • Film
  • Papers
  • . Unprepared Sweeps
  • Others 

E. Sweeps (Prepared)

F. Printed Circuit Board

  • Punch Outs
  • Non Assembled
  • Assembled

G. Glass to Metal Tubes, etc.

  • Solid Precious Metal Parts
  • Alloyed Metal Parts
  • Plated Metal Parts
  • Ceramics
  • Other

H. Metal Scrap

I. Non-Magnetic

  • Impure Gold
  • Impure Silver
  • Copper Base
  • Aluminum Base
  • Brass Base
  • Bronze Base
  • Molybdenum Base
  • Beryllium Base

II. Magnetic

  • Kovar Base
  • Stainless Steel Base
  • Iron Base
  • Nickel Base
  • Other

I. Catalyst

  • Carbon
  • Alumina
  • Rare Earth
  • Silica
  • Other
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