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AS 1050.33-1988
[Current]Methods for the analysis of iron and steel, Part 33: Determination of nickel content — Flame atomic absorption spectrometric method
Sets out a flame atomic absorption procedure for the determination of nickel in iron and steel in the range of 0.002 percent to 0.5 percent. The method is technically identical to ISO 4940, Steel and cast iron - Determination of nickel content - Flame atomic absorption spectrometric method.
Published: 05/04/1988
Pages: 4
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 APPLICATION
3 REFERENCED DOCUMENTS
4 PRINCIPLE
5 REAGENTS
5.1 General requirements
5.2 High purity iron
5.3 Solutions
5.3.1 Hydrochloric acid-nitric acid mixture
5.3.2 Nitric acid-perchloric acid mixture
5.4 Standard solutions
5.4.1 Stock nickel solution (1 mL ≡ 1 mg Ni)
5.4.2 Standard nickel solution (1 mL ≡ 40 µg Ni)
6 APPARATUS
6.1 Glassware
6.2 Atomic absorption spectrometer
6.2.1 General
6.2.2 Operating parameters
6.2.3 Performance criteria
7 SAMPLING
8 PROCEDURE
8.1 Number of determinations
8.2 Blank test
8.3 Check test
8.4 Dissolution of the sample
8.5 Atomic absorption measurement
9 CALIBRATION
9.1 Preparation of the calibration solutions
9.1.1 Nickel content < 0.1% (m/m)
9.1.2 Nickel content 0.1 to 0.5% (m/m)
9.2 Plotting the calibration graph
9.3 Acceptibility of calibration graph in relation to test sample concentration
10 CALCULATION
11 PRECISION
12 ACCEPTANCE OF ANALYTICAL VALUES
12.1 Single test sample
12.2 Replicate determinations
12.3 Acceptance of reference material values
13 TEST REPORT
Cited references in this standard
[Current]
Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions
[Superseded]
Code of practice for the chemical analysis of materials by flame atomic absorption spectroscopy
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