@prefix sampledescriptionvocabulary1: <https://purls.helmholtz-metadaten.de/skosmos/sdv/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

sampledescriptionvocabulary1:CryogenicCooling
  a skos:Concept ;
  skos:broader sampledescriptionvocabulary1:CoolingMethod ;
  skos:definition "1. Cryogenics are the branches of engineering that involve the study of very low temperatures (ultra low temperature i.e. below 123 K), how to produce them, and how materials behave at those temperatures. (Wikipedia) 2. Cold treatment (or cryogenic treatment) consists of cooling mechanical parts below room temperature after a quenching heat treatment. The holding temperature is between 0°C and -150°C (most often between -80 and -100°C for steels). (a3ts.org)"@en ;
  skos:prefLabel "Cryogenic cooling"@en, "Cryogenic cooling" .

sampledescriptionvocabulary1:CoolingMethod
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:CryogenicCooling ;
  skos:prefLabel "Cooling method"@en, "Cooling method" .