Analysis of information sources in references of the Wikipedia article "Trimix (breathing gas)" in English language version.
Argon:0.016; Air:0.024; Helium:0.142 W/mK
He price in 2000 @ Unit Value 10500 and He price in 2011 @ Unit Value 15900 per ton
He price in 2000 @ Unit Value 10500 and He price in 2011 @ Unit Value 15900 per ton