{"@context":{"ns0":"http://opendata.inrae.fr/PO2/Ontology/TransformON/","rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","owl":"http://www.w3.org/2002/07/owl#","rdfs":"http://www.w3.org/2000/01/rdf-schema#","skos":"http://www.w3.org/2004/02/skos/core#","metadata_def":"http://data.bioontology.org/metadata/def/","metadata":"http://data.bioontology.org/metadata/"},"@graph":[{"@id":"ns0:c_g2sWscxF","@type":"owl:Class","rdfs:subClassOf":{"@id":"ns0:c_eQHy8P"},"skos:altLabel":{"@language":"en","@value":"gas adsorption method"},"skos:definition":[{"@language":"en","@value":"A common method for measuring specific surface area."},{"@language":"fr","@value":"Technique analytique pour la détermination de la texture poreuse, en particulier la surface spécifique, de matériaux micro-, méso- ou macroporeux."}],"skos:prefLabel":[{"@language":"de","@value":""},{"@language":"es","@value":""},{"@language":"it","@value":""},{"@language":"fr","@value":"adsorption de gaz"},{"@language":"en","@value":"gas molecule adsorption"}],"skos:editorialNote":"","skos:scopeNote":"@en: In this method first we measure the data of adsorption isotherms, then evaluate the monolayer adsorption capacity by using an adsorption model, then multiply it by the section area of gas molecules, thus we can obtain the specific surface area. By measuring the amount of gas adsorbed at different pressures and temperatures, we can gain valuable insights into the characteristics of a powder such as the pore size distribution within the powder particle.\n@fr: Elle permet en outre l’évaluation du volume poreux et de la distribution de tailles de pores de matériaux micro- ou mésoporeux. Non-destructive, son principe est basé sur la physisorption réversible de molécules à la surface d’un substrat. La surface spécifique est calculée en multipliant la quantité de molécules sonde qui couvrent complètement la surface pour former une monocouche par la section d’encombrement d’une molécule. Le volume microporeux est déterminé par la quantité adsorbée à très faible pression tandis que le volume poreux total correspond à la quantité adsorbée à saturation.","metadata:def/mappingLoom":"adsorptiondegaz","metadata:def/mappingSameURI":{"@id":"ns0:c_g2sWscxF"},"metadata:prefixIRI":"c_g2sWscxF","skos:note":"","skos:inScheme":{"@id":"ns0:cs_Main"}},{"@id":"ns0:c_P8Ize6zR","rdfs:subClassOf":{"@id":"ns0:c_g2sWscxF"}},{"@id":"ns0:c_yaAk5d2K","rdfs:subClassOf":{"@id":"ns0:c_g2sWscxF"}}]}