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