ASTM D4292 Test Method for Determination of Vibrated Bulk Density of Calcined Petroleum Coke
6. Apparatus
6.1 Jaw Crusher, laboratory type; jaw opening, approximately 50 by 200 mm; jaws can be set to gaps of approximately 3.2 to 12.7 mm; manganese steel jaw plates.
6.2 Roll Crusher, laboratory type; glass hardened rolls; roll diameter, approximately 200 mm; roll width, approximately 150 mm; gap range from 0 to 12.7 mm, both rolls shall rotate to crush the material. Do not use a disc mill, disc type grinder, or disc pulverizer, since these contain one stationary roll. Prior to use, check and adjust the springs on the roll crusher according to the manufacturer's recommendation.
6.3 Sieve Shaker, electrical drive with an automatic timer; should have a rotating and tapping action.
6.4 Sieves - meeting Specification E11.
6.5 Pan Balance, accurate to 0.1 g, capacity 2.0 kg.
6.6 Vibrator, with approximately 175- by 250-mm deck, must be capable of vibrating at a frequency of 60 Hz and an amplitude of 0.20 to 0.22 mm (peak) when loaded with a 50-g cork ring, 215-g graduated cylinder, and a 100-g coke sample.
6.7 Ohmmeter, adequate to test continuity of an electrical circuit.
6.8 Cork Ring, approximately 100-mm inside diameter by 25 mm high by 12 mm thick, weight approximately 50 g (round-bottom flask support).
6.9 Graduated Cylinder, glass, 250 mL, inside diameter approximately 37 mm, base diameter approximately 95 mm.
6.10 Plastic Funnel, must have a stem with straight sides and an outside diameter of 25 to 30 mm (powder funnel).
6.11 Automatic Timer, Clock, or Watch, with a second indicator.
6.12 Riffle Sampler, enclosed drawer, approximately 380 by 290 by 360 mm, 24-slot.
6.13 Feeler Gauges, mm size for checking the gap settings on the roll crusher.
7. Precautions
7.1 Exercise care in the operation of the jaw crusher and roll crusher. Turn power off at the source when setting the gap. Wear safety glasses and keep hands clear when feeding material. Turn power off at the source when equipment is opened for cleaning after the grinding operation.
