{"tema_id":"903","string":"instability of the calibration characteristic           #00406","created":"2022-12-19 09:13:33","code":null,"notes":[{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R048:2004 2.6 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 00406 "},{"@type":"Definition note","@lang":"en-EN","@value":"variation in the temperature of a tungsten ribbon. The temperature instability is characterized by a temperature equivalent to the current change in the lamp circuit per 1 hour "}]}