Abstract
Specifies a method for determining the swelling properties of hard coal when heated under standard conditions in a dilatometer. In performing the method a pencil made of powdered coal formed under pressure is inserted into a precisely calibrated narrow tube and topped by a calibrated steel rod which slides in the bore of the tube. The whole is heated at a constant and definite rate. By making regular readings of the displacement of the rod as a function of the temperature and expressing the displacements observed as percentages of the original length of the penicl a curve is plotted.
General information
-
Status: WithdrawnPublication date: 1975-01Stage: Withdrawal of International Standard [95.99]
-
Edition: 1Number of pages: 11
-
Technical Committee :ISO/TC 27/SC 5ICS :73.040
- RSS updates
Life cycle
-
Now
-
Revised by
PublishedISO 349:2020
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)