BS EN ISO 6142-1:2015 – TC:2020 Edition
$246.62
Tracked Changes. Gas analysis. Preparation of calibration gas mixtures – Gravimetric method for Class I mixtures
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 135 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 92 | Foreword |
| 93 | Introduction |
| 94 | 1 Scope 2 Normative references 3 Terms and definitions |
| 95 | 4 Symbols |
| 96 | 5 Principle |
| 98 | 6 Planning the preparation of the mixture 6.1 Feasibility of preparing the gas mixture 6.1.1 Safety considerations 6.1.2 Reactions of mixture components 6.1.3 Reactions with container materials 6.2 Choice of preparation method |
| 99 | 6.3 Calculation of target masses 6.4 Condensation of components from the gas phase 7 Purity analysis |
| 100 | 8 Determination of masses and calculation of preparation uncertainty 8.1 Preparation of cylinder 8.2 Determination of masses and their uncertainties 8.3 Atomic weights and molar masses |
| 101 | 8.4 Calculation of the mixture composition 8.5 Calculation of gravimetric uncertainty 9 Homogeneity and stability of the calibration gas mixture 9.1 Homogeneity |
| 102 | 9.2 Stability 9.2.1 General 9.2.2 Assessing stability |
| 104 | 9.2.3 Statistics for assessment stability 9.2.4 Calculation of the preparation uncertainty 10 Verification of calibration gas mixture composition 10.1 Objectives |
| 105 | 10.2 Statistical tests for consistency and uncertainty due to verification 11 Uncertainty of the calibration gas mixture and preparation of certificate |
| 107 | Annex A (informative) Precautions to be taken when weighing, handling and filling cylinders |
| 112 | Annex B (informative) Practical examples |
| 115 | Annex C (informative) Guidelines for estimating filling pressures so as to avoid condensation of condensable components in gas mixtures |
| 118 | Annex D (normative) Liquid introduction |
| 125 | Annex E (informative) Atomic weights and molar masses |
| 127 | Annex F (informative) Derivation of the equation for calculating the calibration gas mixture composition |
| 129 | Annex G (informative) Sensitivity coefficients for the calculation of the uncertainty of the amount fraction of a component |
| 130 | Annex H (informative) Derivation of the equation for the final measurement uncertainty on the calibration gas mixture |
| 131 | Bibliography |
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ISO 6142-1:2015
Gas analysis — Preparation of calibration gas mixtures — Part 1: Gravimetric method for Class…
