1. Hard coal: determination of the swelling properties using a dilatometer;International Organization for Standardization;ISO 8264,1989
2. Hard coal: Audibert-Arnu dilatometer test;International Organization for Standardization;ISO 349,1975
3. Prüfung fester Brennstoffe: Bestimmung des Kokungsgrades von Steinkohle nach dem Dilatometer-Verfahren;Deutscher Normenausschuss;DIN 51,1956
4. Recommendations for the Dilatometric Examination of Coal;British Carbonization Research Association;Special Publication 17,1976