U.S. Code of Federal Regulations
Regulations most recently checked for updates: Jun 03, 2023
This section describes how to verify the performance of an inertial PM balance.
(a) Independent verification. Have the balance manufacturer (or a representative approved by the balance manufacturer) verify the inertial balance performance within 370 days before testing.
(b) Other verifications. Perform other verifications using good engineering judgment and instrument manufacturer recommendations.