ISO 6349-1979 - 中外标准 - - 1979/12 - 作废
Describes the principles of the method, which is a continuous dynamic method, for the preparation of gas mixtures in which the components that is desired to use generally have a concentration between 10-9 and 10-5 (by volume) with an achievable accuracy of 2 % of the concentration of the component.
ISO 6147-1979 - 中外标准 - - 1979/2 - 作废
Describes the principles of the method for continuous preparation, whereat one of the components is readily condensable. Gives practical example with schematic diagram and calculation of the error.
ISO 6206-1979 - 中外标准 - - 1979/2 - 现行
Defines, in English and french, the terms most frequently used classifying them in the following groups: General terms, hierarchy of sampling terms, terms related to taking a sample, and terms related to the statistics of sampling.