The packing density is more preferably 0.6 1.3 kg/l. Herein, bulk volume refers to {HEAD ~ an apparent volume} including {TAIL ~ any vacant space} 
including
The packing density is more preferably 0.6 1.3 kg / l. Herein , bulk volume refers to { HEAD ~ an apparent volume } including { TAIL ~ any vacant space }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL