60.60 Standard published Aug 23, 2006
CEN
CEN/TC 238 Test gases, test pressures, appliance categories and gas appliance types
European Norm
71.040.30 Chemical reagents
Published
ISO 6144:2003 specifies a method for the preparation of calibration gas mixtures by a static volumetric method and provides a procedure for calculating the volumetric composition of the mixture. It can be used either with binary gas mixtures (containing one calibration component in a complementary gas, which is usually nitrogen or air) or with mixtures containing more than one component in the complementary gas. This International Standard also specifies how the expanded uncertainty in the volume fraction of each calibration component in the mixture is determined by a rigorous evaluation of all the measurement uncertainties involved, including those associated with the apparatus used for the preparation of the gas mixture and those associated with the experimental procedure itself.
PUBLISHED
EN ISO 6144:2006
60.60
Standard published
Aug 23, 2006
