{"tema_id":"1566","string":"reference gas           #02369","created":"2022-12-19 09:13:38","code":null,"notes":[{"@type":"Scope note","@lang":"en-EN","@value":"1. Adapted from ISO 7504, 4.1 (calibration gas mixture) and 4.1.1 (reference gas mixture) and \u201cVIM\u201d, 5.13 (reference material) and 5.14 (certified reference material); 2. In the referent ISO Standards, the expression \u201ccalibration gas\u201d is generally used; 3. See also Annex B. "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R099-1:2008 3.34 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 02369 "},{"@type":"Definition note","@lang":"en-EN","@value":"gas mixture of sufficient stability and homogeneity whose composition is properly established for use in various performance tests "}]}