{"tema_id":"225","string":"calibration gas mixture (CGM)           #02151","created":"2022-12-19 09:13:28","code":null,"notes":[{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R143:2009 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 02151 "},{"@type":"Definition note","@lang":"en-EN","@value":"stable gas mixture of known SO  concentration (volume 2 "}]}