{"tema_id":"1575","string":"reference material for absorbance           #01855","created":"2022-12-19 09:13:38","code":null,"notes":[{"@type":"Scope note","@lang":"en-EN","@value":"1. It may be in the form of a liquid or solid; for example a glass filter. 2. Adapted from ISO  Guide 30 and VIM, clause 6.13. "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R135:2004 2.16 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 01855 "},{"@type":"Definition note","@lang":"en-EN","@value":"material of sufficient homogeneous and well-established absorbance to be used for the calibration or control of spectrophotometers "}]}