ISO 349:1975 PDF
Hard coal — Audibert-Arnu dilatometer test
Title (English):
ISO 349:1975
Hard coal — Audibert-Arnu dilatometer test
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 11
- Publication date:
- January 1, 1975
- Edition:
- ISO IS 349 edition 1 version 1
- ICS:
- 73.040
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 27/SC 5 - Methods of analysis
- SKU
- ISO 349:1975
