{ "code": "17.020", "fieldcode": "17", "description": "Metrology and measurement in general", "groupcode": "020", "@context": "https://isoics.org/jsonld/group.jsonld", "descriptionFull": "Metrology and measurement. Physical phenomena. Metrology and measurement in general.", "notes": [ { "text": "Including measuring instruments in general, preferred numbers, standard measures, general aspects of reference materials, etc." }, { "text": "Quantities and units, see {ics-code}", "ics-code": "01.060" }, { "text": "Chemical reagents, see {ics-code}", "ics-code": "71.040.30" } ] }