ASTM D4930 Test Method for Dust Control Material on Calcined Petroleum Coke
4. Summary of Test Method
4.1 The dust control material is dissolved from a weighed dry representative sample of 6.3 mm maximum sized coke by methylene chloride in a Soxhlet extraction apparatus. The mass of the residue remaining after distilling and evaporating the solvent is the mass of dust control material. The amount of residue as a percent of the original mass is calculated.
5. Significance and Use
5.1 The test is designed to quantify the amount of dust control material added to calcined coke. The dust control material is applied to calcined coke to help maintain a dust-free environment. It generally serves no other useful purpose. It adds mass to the coke and can have a negative effect on the quality of carbon and graphite artifacts made from the treated coke. For these reasons the coke customer wants to know the amount of dust control material on the coke and can specify a maximum level.
