102.5 - Copper "Benchmark" (block, chip and rod forms)

SRMs with a "C" prefix are chill-cast blocks approximately 32 mm square and 19 mm thick.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.


- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only


Detail - Detail    Certificate - Certificate    Report of Investigation - Report of Investigation    MSDS - MSDS    Data Files - Data Files    Questionaire - Questionnaire


  399 400 454 457 494 495 498 499 500 C1251a C1253a C1252a
Status   >> Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling
Description   >> Unalloyed Copper - Cu VI
Unalloyed Copper VII (chips) Unalloyed Copper XI (chips) Unalloyed Copper IV (solid) Unalloyed Copper I (solid) Unalloyed Copper II (solid) Unalloyed Copper V (solid) Unalloyed Copper VI (solid) Unalloyed Copper VII (solid) Phosphorus Deoxidized Copper - Cu VIII Phosphorus Deoxidized Copper - Cu X Phosphorus Deoxidized Copper - Cu IX
  Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS
Unit of Issue   >> 50 g 50 g 35 g rod rod rod rod rod rod block block block

Concentration are expressed as mass fraction, in mg/kg (unless noted by an asterisk * for %).

Aluminum (Al) <2 <2     <2 <2 <2 <2 <2 <20 176 <20
Antimony (Sb) 30 102 24 0.214 4.5 8.0 7.4 30 102 14.9 139 42
Arsenic (As) 47 140 46 <2 2.6 1.6 25 47 140 16 436 118
Bismuth (Bi) 10.5 24.5 19 0.22 0.35 0.50 2.0 10.5 24.5 3.7 56 19
Cadmium (Cd) <1 <1   <1 0.5 0.4 <22 <1 <1 <3 70 16.9
Chromium (Cr) 0.5 0.5   <2 2.0 6.0 (0.3) 0.5 0.5 3 260 19
Cobalt (Co) 0.5 0.6 4 0.227 0.5   2.7 0.5 0.6 13.2 454 87
Copper (Cu) 99.79* 99.70* 99.84* 99.97* 99.908* 99.944* 99.98* 99.79* 99.70* 99.89* 99.46* 99.87*
Gold (Au) 4 10 7.5 <0.05 0.07 0.13 0.1 4 10 15.5 72 33.9
Iron (Fe) 20.0 41 50 2.4 147 96 11 20.0 41 285 290 72
Lead (Pb) 114 128 66 0.512 26.5 3.25 10 114 128 23.5 243 60
Magnesium (Mg) <1 <1   <1 <1 <1 <1 <1 <1 <20 150 <20
Manganese (Mn) 0.3 0.2   <0.1 3.7 5.3 0.3 0.3 0.2 4.6 357 43
Nickel (Ni) 506 603 150 0.67 11.7 5.4 7.0 506 603 23.6 491 128
Oxygen (O)       367                
Palladium (Pd)     (0.1)                  
Phosphorus (P)                   420 561 125
Selenium (Se) 95 214 479 4.05 2.00 0.63 17.5 95 214 11 136 56
Silicon (Si) <2 <2   <1 <2 <2 <2 <2 <2 <50 580 <100
Silver (Ag) 117 181 286 8.086 50.5 12.2 20.1 117 181 80 494 158
Sulfur (S) 10 9   4 15 13 (11) 10 9 35 50 70
Tellurium (Te) 50 153 27 0.296 0.58 0.32 10.1 50 153 16 168 54.6
Tin (Sn) ~90 ~200 2.2 <0.1 70 1.5 5 ~90 ~200 16 499 120
Titanium (Ti)       <1                
Zinc (Zn) 45 114 7 <3 405 12.2 25 45 114 24 329 69.4

- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only

* Mass fraction in %