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Copper

Commodity Code - 1005
Commodity Name - Copper

 

Assaying parameters as per IS 191 :

  AP I AP II AP III AP IV AP V AP VI AP VII AP VIII AP IX AP X AP XI AP XII AP XIII AP XIV AP XV AP XVI AP XVII
Grades Copper + Silver (%) (Min) Silver (%) (Max) PHOSPORUS ARSENIC (%) MAX ANTIMONY (%) MAX BISMUTH (%) MAX IRON (%) MAX LEAD (%) MAX NICKEL (%) MAX OXYGEN (%) MAX SELENIUM (%) MAX SULPHUR (%) MAX TELLURIUM (%) MAX TIN (%) MAX ZINC (%) MAX SELENIUM + TELLURIUM (%) MAX TOTAL IMPURITIES (%) MAX
Cu-CATH-1 99.99 0.002   0.0005 0.0004 0.0001 0.0001 0.0005 0.001   0.0002 0.0015 0.0002     0.0003 0.0065

 

Notes :

  1. (As+Cd+Cr+Mn+P+Sb) MAX (%) = 0.0015
  2. (Co+ Fe+Ni+Si+Sn+Zn) MAX (%) = 0.002
  3. Can be supplied with any other limits of Bismuth (with maximum of 0.0002) as per agreement between purchaser and supplier
  4. Can be supplied without specifying the limits of Nickel as per agreement between purchaser and supplier
  5. If required by purchaser only and in such case, the limits of Tin shall be as per the agreement between purchaser and the supplier subject to maximum of 0.005
  6. Cathodes shall be reasonably free from nodules and foreign materials, such as Copper Sulphate, dirt, grease and oil and shall withstand ordinary handling without breakage
  7. Mass Resistivity, ohm g/m2(MAX) shall be 0.15176
  8. Marking and other requirements as per latest IS:191