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BSI 23/30450716 DC:2023 Edition

BSI 23/30450716 DC:2023 Edition

$13.70

BS ISO 11626. Natural gas. Determination of sulfur compounds. Determination of hydrogen sulfide content by UV absorption method

Published By Publication Date Number of Pages
BSI 2023 17
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PDF Catalog

PDF Pages PDF Title
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
8 5 Principle
6 Instrument
6.1 General requirements
6.2 Sample processing system
6.3 Optical analysis system
6.4 Data processing and recording system
9 7 Reagents and materials
7.1 Zero gas
7.2 Hydrogen sulfide calibration gas mixture
7.3 Hydrogen sulfide absorption solution
8 Sampling
8.1 Installation location
8.2 Materials requirement
8.3 Online sampling requirement
9 Sample testing
9.1 Instrument status confirmation
10 9.2 Calibration curve establishment
9.2.1 General
9.2.2 Single-point calibration
9.2.3 Multi-point calibration
9.3 Analytical procedure
10 Instrument verification
11 11 Precision
11.1 Repeatability, r
11.2 Reproducibility, R
12 Uncertainty evaluation
12.1 Principle
12.2 Random uncertainty of test results(urel,As)
12 12.3 Uncertainty of calibration signal(urel,Aref)
12.4 Uncertainty of reference material(urel,Cref)
12.5 Combined uncertainty of reported result(urel,Cs)
12.6 Expanded uncertainty of reported result(Urel,Cs)
13 Annex€A (informative) Example of statistical procedure for estimation of the precision

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BSI 23/30450716 DC
$13.70