DIN EN ISO 6145-7-2011 气体分析.用动态容量法制备校准气体混合物.第7部分:热质流控制仪(ISO 6145-7-2009).德文版本EN ISO 6145-7-2010
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers (ISO 6145-7:2009); German version EN ISO 6145-7:2010
This part of ISO 6145 is one of a series of International Standard dealing with the dynamic volumetric methods used for the preparation of calibration gas mixtures. This part specifies a method of the continuous production of calibration gas mixtures,containing two or more components, from pure gases of other gas mixtures by use of commercially anailable thremal mass-flow controllers.