- Argon 0.00093
- Helium 0.00093
- Air, room 0.00120
- Air, standard 0.00123
- Hydrogen 0.00129
- Nitrogen 0.00130
- Aerogel, silica 0.01680
- Soil, dry 1.04000
- Polysulfone 1.25000
- Sand, dry 1.33600
- Lead 1.46402
- Gasoline 1.63614
- Fused Silica 7940 1.66050
- Pyrex® 7740 1.68150
- Methanol 1.69488
- Diamond 1.78761
- UHMW Polyethylene 1.78790
- HDMW Polyethylene 1.78790
- Concrete, gravel 1.83920
- Mercury 1.88967
- LDMW Polyethylene 1.92990
- Flint Glass F4 1.97476
- Macor® Ceramic 1.99080
- Zerodur® 2.01600
- Granite 2.13300
- Crown Glass BK7 2.16130
- Paraffin Wax, solid 2.25000
- Astro Sitall® 2.25400
- Concrete, with Stones 2.29900
- Aluminum 5052 H32 2.35840
- Titanium 6AL-4V 2.35858
- Aluminum 6061 T6 2.43085
- Silver 2.44417
- Aluminum 2024 T3 2.44650
- Aluminum 2011 T3 2.48424
- Gold 24K 2.48970
- Aluminum 7075 T6 2.69760
- Platinum 2.78850
- PTFE, Teflon® 2.86000
- Ammonia, liquid 2.86832
- Beryllium Copper 172 3.13462
- Brass 360 3.22924
- Beeswax, solid 3.26740
- Copper 3.44190
- Stainless, Duplex 2205® 3.51225
- Beryllium, pure 3.56125
- Stainless, 17-4 PH 3.59076
- Stainless 316 & 316L 3.99950
- Stanless 304 & 304L 3.99950
- Salt Water 4.08883
- Fresh Water 4.16457
- Ammonia, liquid - gas 48.871
- Paraffin Wax, solid-liquid 810.00