The term "pressure" means gauge air pressure in pounds per square inch.
[ 1937 c 131 s 1; RRS s 7666-1.]
RCW 49.24.010, under Health and safety—Underground workers..
RCW 49.24.010
The term "pressure" means gauge air pressure in pounds per square inch.
[ 1937 c 131 s 1; RRS s 7666-1.]