# Asphalt at temperatures greater than 50 °C · 0.3A · 3.31. Vehicle-Tank Meters — How far off a US fuel pump, LPG meter or EV charger is allowed to be (NIST Handbook 44)

For Asphalt at temperatures greater than 50 °C · 0.3A · 3.31. Vehicle-Tank Meters, device or commodity is Asphalt at temperatures greater than 50 °C; accuracy class is 0.3A; acceptance tolerance (new or newly repaired device) is 0.3 %; maintenance tolerance (device already in service) is 0.3 %; special test tolerance is 0.5 %, verified against its source on 2026-08-20.

- **Device or commodity:** Asphalt at temperatures greater than 50 °C _(verified: appears in the quote below)_
- **Accuracy class:** 0.3A _(verified: appears in the quote below)_
- **Acceptance tolerance (new or newly repaired device):** 0.3 % _(verified: appears in the quote below)_
- **Maintenance tolerance (device already in service):** 0.3 % _(verified: appears in the quote below)_
- **Special test tolerance:** 0.5 % _(verified: appears in the quote below)_
- **Handbook 44 section:** 3.31. Vehicle-Tank Meters _(verified: appears in the quote below)_
- **Edition:** 2026 _(verified: appears in the quote below)_

## What the source says

> - Asphalt at temperatures greater than 50 °C 0.3A 0.3 % 0.3 % 0.5 % (122 °F)

## Source

- https://www.nist.gov/document/2026-nist-handbook-44-section-331

Last verified: 2026-08-20. Review by: 2027-08-20.
Part of [How far off a US fuel pump, LPG meter or EV charger is allowed to be (NIST Handbook 44)](https://referencesource.org/motor-fuel-dispenser-measurement-tolerances-nist/).