Gases at low pressure · 3.0 · Overregistration · 3.33. Hydrocarbon Gas Vapor-Measuring Devices

What is the acceptance tolerance (new or newly repaired device) for Gases at low pressure · 3.0 · Overregistration · 3.33. Hydrocarbon Gas Vapor-Measuring Devices?

For Gases at low pressure, accuracy class is 3.0; condition is Overregistration; handbook 44 section is 3.33. Hydrocarbon Gas Vapor-Measuring Devices; acceptance tolerance (new or newly repaired device) is 1.5 %; maintenance tolerance (device already in service) is 1.5 %, verified against its source on 2026-08-20.

Gases at low pressure Overregistration 1.5 % 1.5 % 3.0 (for example, LPG vapor) Underregistration 3.0 % 3.0 %

— nist.gov, retrieved 2026-08-20