E1898 (version 21)
1.1 This test method covers the determination of silver in the range of 13 μg/g to 500 μg/g by acid dissolution of the silver and measurement by atomic absorption spectrometry. Copper concentrates are internationally traded within the following content ranges:
Element
Unit
Content Range
Aluminum
%
0.05
to
2.50
Antimony
%
0.0001
to
4.50
Arsenic
%
0.01
to
0.50
Barium
%
0.003
to
0.10
Bismuth
%
0.001
to
0.16
Cadmium
%
0.0005
to
0.04
Calcium
%
0.05
to
4.00
Carbon
%
0.10
to
0.90
Chlorine
%
0.001
to
0.006
Chromium
%
0.0001
to
0.10
Cobalt
%
0.0005
to
0.20
Copper
%
10.0
to
44.0
Fluorine
%
0.001
to
0.10
Gold
μg/g
1.40
to
100.0
Iron
%
12.0
to
30.0
Lead
%
0.01
to
1.40
Magnesium
%
0.02
to
2.00
Manganese
%
0.009
to
0.10
Mercury
μg/g
0.05
to
50.0
Molybdenum
%
0.002
to
0.25
Nickel
%
0.0001
to
0.08
Silicon
%
0.40
to
20.0
Silver
μg/g
18.0
to
8000
Sulfur
%
10.0
to
36.0
Tin
%
0.004
to
0.012
Zinc
%
0.005
to
4.30
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.