scope:

A validated computer program implementing the recommended methods of calculating mixture composition and uncertainties as described in ISO 6142. The program consists of a 'Purity table', for input and editing of purity tables of parent gases containing a fixed number of gaseous components, and 'Mixture data', for input and editing of weighing results and accompanying uncertainties. The program has been validated by a large series of tests using real data sets and was extensively tested and validated by experts of ISO/TC 158. The program will normally be supplied on a 3,5" double-sided high density diskette. The program has been written for use with IBM-compatible personal computers and the MS-Windows 95 operating system.