Overview

The National Measurement Institute (NMI) has been working to revise NITP 14 – National Instrument Test Procedures for Utility Meters.

The proposed revisions include:

  • separation of test procedures for different kinds of utility meters

  • inclusion of test procedures for gas meters

  • clarification of requirements for batch sampling plans and selection

  • clarification of acceptance of ISO/IEC 17020 accredited laboratories

  • removal of references to in-service inspection and re-verification

  • clarification of requirements for marking of verification marks and issuing of batch verification certificates

  • reduction in acceptance level for batch verification.

Consultation documents

As part of this process, we are seeking feedback from stakeholders on:

Timeline

Contact
NMI Legal Metrology Policy