# ===================
# HU	density g/cm3
# ===================
-2000		0.00121
-1000		0.00121
-837		0.195
-525		0.495
-67		0.967
-35		0.991
10		1.000
52		1.062
256		1.161
1002		1.609
2067		2.15
4000	2.82
6000	2.82
