Large capacity motor-fuel dispensers · 0.3 · 3.37. Mass Flow Meters

What is the acceptance tolerance (new or newly repaired device) for Large capacity motor-fuel dispensers · 0.3 · 3.37. Mass Flow Meters?

For Large capacity motor-fuel dispensers, accuracy class is 0.3; handbook 44 section is 3.37. Mass Flow Meters; acceptance tolerance (new or newly repaired device) is 0.2 %; maintenance tolerance (device already in service) is 0.3 %; special test tolerance is 0.5 %, verified against its source on 2026-08-20.

0.3 - Large capacity motor-fuel dispensers (maximum 0.2 % 0.3 % 0.5 % discharge flow rates greater than 100 L/min or 25 gal/min)

— nist.gov, retrieved 2026-08-20