Résumé

Gives the definition, classification and designation of shaped insulating refratory materials. According to the definition they have a total porosity of at least 45%. One distinguishes between high alumina products, fireclay and siliceous fireclay products, semi-silica products, silica products, basic products and special products. High alumina, fireclay and siliceous fireclay products are subdivided depending on the temperature at which the material does not show any permanent linear change in dimension greater than 2% at the end of a conventional test.


Informations générales 

  • État actuel
     : Annulée
    Date de publication
     : 1980-06
  • Edition
     : 1
    Nombre de pages
     : 4
  • Comité technique
     : ISO/TC 34/SC 7 Epices, herbes aromatiques et condiments
  • ICS
     :
    67.220.10 Épices et condiments

Cycle de vie

Vous avez une question?

Consulter notre FAQ

Service à la clientèle
+41 22 749 08 88

Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)

  2. Store
  3. Catalogue de normes
  4. TC
  5. ISO/TC 34/SC 7
  6. ISO 2254:1980