This method is for determining the specific gravity of cokederived from either petroleum or coal. Other granular materials canbe analyzed if they can be ground to pass a No. 200 sieve, areessentially insoluble in ethylene glycol and have a specificgravity greater than ethylene glycol. The method is also applicableto hard asphalts and similar materials that can be ground to passthrough a No. 100 sieve and are essentially insoluble in tert-amylalcohol.