DIN EN ISO 6142-1 E : 2015
Current
The latest, up-to-date edition.
GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES - PART 1: GRAVIMETRIC METHOD FOR CLASS I MIXTURES (ISO 61421:2015)
Hardcopy , PDF
English
01-01-2015
National foreword
National Annex NA (informative) - Bibliography
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Planning the preparation of the mixture
7 Purity analysis
8 Determination of masses and calculation of
preparation uncertainty
9 Homogeneity and stability of the calibration
gas mixture
10 Verification of calibration gas mixture composition
11 Uncertainty of the calibration gas mixture and
preparation of certificate
Annex A (informative) - Precautions to be taken
when weighing, handling and filling
cylinders
Annex B (informative) - Practical examples
Annex C (informative) - Guidelines for estimating
filling pressures so as to avoid condensation
of condensable components in gas mixtures
Annex D (normative) - Liquid introduction
Annex E (informative) - Atomic weights and molar
masses
Annex F (informative) - Derivation of the equation
for calculating the calibration gas mixture
composition
Annex G (informative) - Sensitivity coefficients for
the calculation of the uncertainty of the
amount fraction of a component
Annex H (informative) - Derivation of the equation
for the final measurement uncertainty on
the calibration gas mixture
Bibliography
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