Standard
AS 1038.6.2-2007
[Withdrawn]Coal and coke - Analysis and testing, Part 6.2: Higher rank coal and coke - Ultimate analysis - Nitrogen
Sets out a method for the determination of nitrogen in the analysis sample of higher rank coal or coke by conversion to ammonium sulfate. Two methods for the distillation of ammonia are given.
Published: 23/02/2007
Pages: 8
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Referenced documents
3 Definitions
4 Principle
5 Safety
6 Reagents
6.1 General
6.2 Sucrose
6.3 Mixed catalyst
6.3.1 Catalyst 1
6.3.2 Catalyst 2 (for use with unreactive coke, i.e. coke that does not digest adequately with Catalyst 1)
6.3.3 General
6.4 Sulfuric acid (p20 1.8 g/mL)
6.5 Standard sulfuric acid solution (0.005 mol/L)
6.6 Boric acid solution, saturated
6.7 Sodium hydroxide solution
6.8 Screened indicator solution
7 Apparatus
7.1 Digestion flasks
7.2 Stopper
7.3 Heating unit
7.4 Distillation apparatus
7.5 Burette
8 Samples
9 Procedure
9.1 Sample digestion
9.2 Distillation
9.2.1 General
9.2.2 Procedure A
9.2.3 Procedure B
9.3 Determination of the blank
10 Calculation
11 Reporting of results
12 Precision
13 Test report
Cited references in this standard
[Withdrawn]
Coal and coke — Analysis and testing, Part 3: Proximate analysis of higher rank coal
[Current]
Coal and coke - Analysis and testing, Part 16: Assessment and reporting of results
AS 2243
Safety in laboratories (series)
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