{"tema_id":"252","string":"certified reference material or absorbance           #01856","created":"2022-12-19 09:13:29","code":null,"modified":"2022-12-19 12:53:05","notes":[{"@type":"Scope note","@lang":"en-EN","@value":"Adapted from ISO Guide 30 and VIM, clauses\u00a0 6.1, 6.2, 6.3 and 6.14. "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R135:2004 2.17 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 01856 "},{"@type":"Definition note","@lang":"en-EN","@value":"reference material, accompanied by a certificate, the spectral absorbance of which is certified by a procedure which establishes metrological traceability to a national or international standard of absorbance, and for which each certified quantity value is accompanied by a measurement uncertainty at a  stated level of confidence "}]}