BS ISO 20676:2018
$142.49
Natural gas. Upstream area. Determination of hydrogen sulfide content by laser absorption spectroscopy
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 26 |
This document specifies a method for the determination of hydrogen sulfide content in working field natural gas of upstream area by laser absorption spectroscopy. The analytical range expressed as mole fraction is 10 × 10−6 to 20 %. The analytical range can be expanded to higher content with specific instrument requirements.
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 4.1 Working principle of the hydrogen sulfide laser absorption analyser |
| 10 | 4.2 Calculation formulae |
| 11 | 5 Measurement device 5.1 Laser hydrogen sulfide analyser 5.1.1 Laser analyser 5.1.2 Laser generator 5.2 Gas pressure regulator 5.3 Flow rate meter 5.4 Hydrogen sulfide absorber 6 Reagents and material 6.1 Calibration gas 6.2 Methane 6.3 Absorb solution of hydrogen sulfide |
| 12 | 7 Measurement 7.1 Preparation 7.2 Calibration of analyser 7.2.1 Calibration frequency 7.2.2 Calibration procedure 7.2.3 Calibration method |
| 13 | 7.3 Sampling 7.4 Measurement of hydrogen sulfide in natural gas sample 7.5 Data processing 8 Repeatability 9 Uncertainty evaluation 9.1 Principle |
| 14 | 9.2 Uncertainty of As 9.3 Uncertainty of Aref 9.4 Uncertainty of Cref 9.5 Uncertainty of result |
| 15 | Annex A (informative) Example of statistical procedure for estimation of the repeatability |
| 24 | Bibliography |
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