Le dernier examen de cette norme date de 2018.
Cette édition reste donc d’actualité.
Résumé
PrévisualiserA test piece, in the form of a pencil, prepared from powdered coal is heated at a constant rate in a steel retort positioned in a furnace, the temperature monitoring system having been previously calibrated using two reference metals of known melting points. The change in level of a piton resting upon the test piece is observed continuously, and record is produced which is characteristic of the swelling properties of the coal.
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État actuel: PubliéeDate de publication: 1989-11
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Edition: 1Nombre de pages: 9
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- ICS :
- 73.040 Charbon
Acheter cette norme
fr
| Format | Langue | |
|---|---|---|
| std 1 61 | ||
| std 2 61 | Papier |
- CHF61
Cycle de vie
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