1.1 ,This test method details a procedure for performing particle size distribution analysis by dry sieve testing on green petroleum coke with a topsize of no more than 75 ,mm and calcined petroleum coke with a topsize of no more than 25 ,mm. Size fractions go down to and include 4.75 ,mm for green petroleum coke and 75 ,μ,m for calcined petroleum coke.
Note 1: ,To convert units, see Table ,1 on nominal dimensions in Specification E11. For example, 75 ,mm is approximately equivalent to a nominal sieve opening of 3 ,in. and 25 ,mm to a nominal sieve opening of 1 ,in. Likewise, 4.75 ,mm can be converted to approximately 0.187 ,in. and 75 ,microns to 0.0029 ,in.