BS ISO 334:2020
$102.76
Coal and coke. Determination of total sulfur. Eschka method
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 16 |
This document specifies a reference method for determining the total sulfur content of hard coal, brown coals and lignites, and coke by the Eschka method.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents |
| 10 | 5.1 Eschka mixture. 5.2 Hydrochloric acid. 5.3 Potassium sulfate solution. 5.5 Methyl red indicator solution. 6 Apparatus 7 Preparation of test sample |
| 11 | 8 Procedure 8.1 Test portion 8.1.1 For coal 8.1.2 For coke 8.2 Charging the crucible |
| 12 | 8.3 Ignition 8.3.1 For coal 8.3.2 For coke 8.4 Recovering the residue 8.5 Extraction 8.6 Precipitation of barium sulfate |
| 13 | 8.7 Blank testing 9 Expression of results |
| 14 | 10 Precision 10.1 Repeatability limit 10.2 Reproducibility limit 11 Test report |
| 15 | Annex A (informative) Derivation of factors used in the calculation in Clause 9 |
