- Standard No.
- EN ISO 6142-1:2015
- Release Date
- 2015
- Published By
- European Committee for Standardization (CEN)
- Latest
-
EN ISO 6142-1:2015
- Replace
-
FprEN ISO 6142-1:2015
- Scope
- This part of ISO 6142 specifies a gravimetric method for the preparation of calibration gas mixtures in gas cylinders with traceable values for the mole fraction (mass fraction) of one or more components. This part of ISO 6142 describes a method for calculating the uncertainty associated with the proportion of each component. This uncertainty calculation requires the assessment of the uncertainty contributions due to various factors, including the weighing process, the purity of the components, the stability of the mixture and the verification of the final mixture. This part of ISO 6142 is applicable only to mixtures of gaseous or fully vaporized components that can be introduced into the gas cylinder in a gaseous or liquid state. Both two- and multi-component gas mixtures (including natural gas mixtures) are covered in this part of ISO 6142. Methods for producing more than one mixture in batches in a single process are not included in this part of ISO 6142. This part of ISO 6142 requires the estimation of the stability of the mixture for its intended life (maximum storage period), but is not intended for use with components that inadvertently react with each other. This part of ISO 6142 also requires the assessment and quantification of impurities in each parent gas or liquid used in the preparation of the mixture.
EN ISO 6142-1:2015 Referenced Document
- DIN 51896-1:1991 Gas analysis; quantities of compositions, compressibility factor; basis
- ISO 6141:2015 Gas analysis - Contents of certificates for calibration gas mixtures
- ISO 6143:2001 Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures
- ISO 6145-1:2003 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 1: Methods of calibration
- ISO 6145-2:2014 Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 2: Piston pumps
- ISO 6145-4:2004 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method
- ISO 6145-5:2009 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 5: Capillary calibration devices
- ISO 6145-6:2003 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 6: Critical orifices
- ISO 6145-7:2009 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers
- ISO 6145-8:2005 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method
- ISO Guide 34:2009 General requirements for the competence of reference material producers
- ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
EN ISO 6142-1:2015 history
- 2015 EN ISO 6142-1:2015 Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015)
EN ISO 6142-1:2015 Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015) has been changed from EN ISO 6142:2006 Gas analysis - Preparation of calibration gas mixtures - Gravimetric method.