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BS EN 15703-2:2014 Copper and copper alloys. Determination of manganese content - Flame atomic absorption spectrometric method (FAAS), 2014
- Contents Page
- Foreword
- 1 Scope
- 2 Normative references
- 3 Principle
- 4 Reagents [Go to Page]
- 4.1 Hydrochloric acid, HCl (ρ = 1,19 g/ml)
- 4.2 Nitric acid, HNO3 (ρ = 1,40 g/ml)
- 4.3 Hydrofluoric acid, HF (ρ = 1,13 g/ml)
- 4.4 Nitric acid solution, 1 + 1
- 4.5 Lanthanum(III) chloride solution, 100 g/l
- 4.6 Sulphuric acid, H2SO4 (ρ = 1,84 g/ml)
- 4.7 Sulphuric acid solution, 1 + 9
- 4.8 Manganese stock solution, 1,0 g/l Mn [Go to Page]
- 4.8.1 Cleaning of manganese metal
- 4.8.2 Preparation of stock solution
- 4.9 Manganese standard solution, 0,10 g/l
- 4.10 Manganese standard solution, 0,010 g/l
- 4.11 Copper matrix solution, 20 g/l Cu
- 4.12 Copper matrix solution, 2 g/l Cu
- 5 Apparatus [Go to Page]
- 5.1 Atomic absorption spectrometer, fitted with an air/acetylene burner
- 5.2 Manganese hollow-cathode lamp
- 6 Sampling
- 7 Procedure [Go to Page]
- 7.1 Preparation of the test portion solution [Go to Page]
- 7.1.1 Test portion
- 7.1.2 Test portion solution
- 7.1.3 Manganese mass fractions between 0,001 % and 0,020 %
- 7.1.4 Manganese mass fractions between 0,020 % and 0,50 %
- 7.1.5 Manganese mass fractions between 0,50 % and 2,0 %
- 7.1.6 Manganese mass fractions between 2,0 % and 6,0 %
- 7.2 Blank test
- 7.3 Check test
- 7.4 Establishment of the calibration curve [Go to Page]
- 7.4.1 Preparation of the calibration solutions [Go to Page]
- 7.4.1.1 General
- 7.4.1.2 Manganese mass fractions between 0,001 0 % and 0,020 %
- 7.4.1.3 Manganese mass fractions between 0,020 % and 0,5 %
- 7.4.1.4 Manganese mass fractions between 0,5 % and 2,0 %
- 7.4.1.5 Manganese mass fractions between 2,0 % and 6,0 %
- 7.4.2 Adjustment of the atomic absorption spectrometer
- 7.4.3 Spectrometric measurement of the calibration solutions
- 7.4.4 Calibration curve
- 7.5 Determination [Go to Page]
- 7.5.1 General
- 7.5.2 Preliminary spectrometric measurement
- 7.5.3 Spectrometric measurements [Go to Page]
- 7.5.3.1 Use of the calibration curve
- 7.5.3.2 Use of bracketing method
- 8 Expression of results [Go to Page]
- 8.1 Use of the calibration curve
- 8.2 Use of the bracketing method
- 9 Precision
- 10 Test report
- Bibliography [Go to Page]