water absoprtion

[groveri]

I have a material datasheet with a property called "Water Absorption" with value of 0.70% at condition of 50% GH/EQ. I'm not familiar with the term GH, I assume EQ is equilibrium. Can anyone explain the meaning of GH and what the 0.70% value means? The datasheet also has "Moisture Absorption" with value of 0.18% at condition of 55% RH/EQ, which I get.

 

[mcgyvr]

GH could simply be a typo..