EN ISO 6145-8:2008
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method (ISO 6145-8:2005)

Standard No.

EN ISO 6145-8:2008

Release Date

2008

Published By

European Committee for Standardization (CEN)

Latest

EN ISO 6145-8:2008

Scope

This part of ISO 6145 specifies a dynamic method using diffusion for the preparation of calibration gas mixtures containing component mole fractions ranging from 10?9 to 10?3. A relative expanded uncertainty of measurement; U; obtained by multiplying the relative combined standard uncertainty by a coverage factor k = 2; of not greater than ± 2 % can be achieved by usingThis method.

EN ISO 6145-8:2008 history

• 2008 EN ISO 6145-8:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method (ISO 6145-8:2005)