ASTM E1898-02 - 10.5.2002
 
1. Scope

1.1 This test method covers the determination of silver in the range of 50 g/g to 1000 g/g by acid dissolution of the silver and measurement by atomic absorption spectrophotometry. Copper concentrates are internationally traded within the following concentration ranges:

ElementUnit Concentration Range
Aluminum%0.05to 2.50
Antimony%0.0001to 4.50
Arsenic%0.01to 0.50
Barium%0.003to 0.10
Bismuth%0.001to 0.16
Cadmium%0.0005to 0.04
Calcium%0.05to 4.00
Carbon %0.10to 0.90
Chlorine%0.001to 0.006
Chromium%0.0001to 0.10
Cobalt%0.0005to 0.20
Copper%10.0to 44.0
Fluorine%0.001to 0.10
Gold g/g1.40to100.0
Iron %12.0to30.0
Lead %0.01to1.40
Magnesium%0.02to 2.00
Manganese%0.009to 0.10
Mercuryg/g0.05to 50.0
Molybdenum% 0.002to 0.25
Nickel%0.0001to 0.08
Silicon%0.40to 20.0
Silverg/g18.0to 8000
Sulfur%10.0to 36.0
Tin %0.004to0.012
Zinc %0.005to4.30

1.2 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 and health practices and determine the applicability of regulatory limitations prior to its use./p>

 
2. Referenced Documents

E1763-06

Standard Guide for Interpretation and Use of Results from Interlaboratory Testing of Chemical Analysis Methods (Withdrawn 2015)

E135-23a

Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials (Includes all amendments and changes 7/17/2023).

E882-10(2016)e1

Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory (Includes all amendments and changes 10/27/2017).

D1193-06(2018)

Standard Specification for Reagent Water

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E50-17

Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

E1601-19

Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method