<http://aims.fao.org/aos/agrovoc/xDef_34a6a066> <http://www.w3.org/1999/02/22-rdf-syntax-ns#value> "An instrument used for colour measurement based on optical comparison with standard colours."@en .
<http://aims.fao.org/aos/agrovoc/xDef_34a6a066> <http://art.uniroma2.it/ontologies/vocbench#hasSource> "PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2181 https://goldbook.iupac.org/terms/view/C01179" .
<http://aims.fao.org/aos/agrovoc/xDef_34a6a066> <http://purl.org/dc/terms/created> "2023-08-11T14:35:34"^^<http://www.w3.org/2001/XMLSchema#dateTime> .