Small capacity (retail) motor-fuel dispensers · 0.5 · 3.37. Mass Flow Meters

What is the acceptance tolerance (new or newly repaired device) for Small capacity (retail) motor-fuel dispensers · 0.5 · 3.37. Mass Flow Meters?

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

0.5 - Small capacity (retail) motor-fuel dispensers 0.3 % 0.5 % 0.5 %

— nist.gov, retrieved 2026-08-20