Copper Certified Reference Material
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The copper certified reference material (CS-075b) is very useful as a standard for verification and as a daily certified check standard. It is a good replacement for the BCR® 075 which is now exhausted. The reference material is pickled and pre-cut to custom weights between 250 mg and 500 mg according to customer needs.
The nominal values in the copper certified reference material are derived from a major U.S. magnet wire manufacturer's material acceptance limits. These low- to mid-range values are very useful for daily certified calibration checks performed by electrolytic primary copper producers, solvent extraction electrowon copper producers, and high purity copper consumers.
This certified reference material is traceable to: NIST 498, 3151, 3103a, 3106, 3126a, 3136, 3128, 3102a, 3149, 3161 and 3168a; and to BCR® 075 and 074.
The values are:
| Element | Certified value µg/g | Uncertainty ± µg/g* |
|
Ag |
15.0 |
0.20 |
|
As |
2.0 |
0.10 |
|
Bi |
0.50 |
0.012 |
|
Fe |
11.0 |
1.1 |
|
Ni |
5.0 |
0.20 |
|
Pb |
5.0 |
0.22 |
|
Sb |
3.0 |
0.12 |
|
Se |
2.0 |
0.04 |
|
Sn |
2.0 |
0.05 |
|
Te |
2.0 |
0.04 |
|
Zn |
3.8 |
0.30 |
Lot CS09Q
* Half width of 95% confidence interval
BCR® is a registered trademark of the European Commission.
Other certified reference materials are under development.
Orders and quotes: sales@copperspec.com
Technical information: support@copperspec.com
CopperSpec, Inc.
Salt Lake City, Utah
Tel: 801.414.6869 * Fax: 801.572.2636
Copyright 2006-2012 CopperSpec, Inc. All rights reserved.