ASTM C231,AASHTO T152
Same as C-2306 with the difference that this pressure air meter employs four stainless steel clamping system , two-pieces, self-locking clamps ,direct percentage gauge with calibration adjustments. Ship wt. 41lbs. (18.6kg)
Each Pressure Air-Meter come with : serial number,operating instructions,calibration procedure,initial pressure line value.