Orange Beer Gas Cylinder

[WolfieBrew]

Can anyone help me figure out the tare weight on my beer gas cylinder? The tank is orange and has the following stamped in the tank:

SPUN DOT-3AA2015 (Symbol: R inside a shield) K272902 4(Symbol:B inside a circle)99 + (Symbol: Star) REE 57.0 TC3AAM154

I have looked online and am thinking it's 27 LBS but any help would be great.

 

[zazbnf]

If it is blended N2 + CO2 beer gas inside, it will be in a gaseous state not liquid. That being said you would need a VERY accurate scale to notice any weight difference for full vs empty.