G-03—Natural gas meters and ancillary devices qualified for a lengthened initial reverification period

Category: Gas
Issue date: 2017-10-04
Effective date: 2017-10-04
Revision number: 7
Supersedes: G-03 (Rev.6)

Table of contents

• 1.0 Purpose
• 2.0 References
• 3.0 Lengthened initial reverification periods
• 4.0 Gas meters and ancillary devices qualifying for an unconditionally lengthened initial reverification period
  • 4.1 Granting of an unconditionally lengthened initial reverification period to qualifying meters
  • 4.2 Granting of subsequent reverification periods to qualifying meters
    • 4.2.1 Exception
    • 4.2.2 Reserviced and reverified gas meters and ancillary devices
    • 4.2.3 Renewed and reverified gas meters and ancillary devices
    • 4.2.4 Compliance sampled gas meters and ancillary devices
• 5.0 Gas meters and ancillary devices qualifying for a conditionally lengthened initial reverification period
  • 5.1 Granting of a conditionally lengthened initial reverification period
  • 5.2 Upgrading qualification from conditional to unconditional
  • 5.3 Conditions for qualification not met
• 6.0 Gas meters and ancillary devices no longer qualifying for a lengthened initial reverification period
  • 6.1 Revocation of unconditionally lengthened initial reverification period
• 7.0 Revisions

1.0 Purpose

This bulletin provides an official record of natural gas meters and ancillary devices qualifying for a lengthened initial reverification period pursuant to Measurement Canada specifications S-EG-01 and S-S-05 and meters no longer qualifying for a lengthened initial reverification period.

2.0 References

• Electricity and Gas Inspection Act, s. 12
• Electricity and Gas Inspection Regulations, ss. 3(1), s. 19
• S-EG-01—Electricity and Gas Meter Pattern Approval Applications—Quality and Measurement Reliability Information Requirements in Support of a Lengthened Initial Reverification Period
• S-S-05—Performance Requirements Applicable to Meters Granted a Conditionally Lengthened Initial Reverification Period Under S-EG-01
• G-18—Reverification Periods for Gas Meters, Ancillary Devices and Metering Installations
• GEN-27—Policy on the Issuance of Inspection Certificates and the Recording of Test Results & Reverification Periods Required Under the Electricity and Gas Inspection Act

3.0 Lengthened initial reverification periods

Lengthened initial reverification periods and their associated subsequent reverification periods are established in bulletin G-18.

4.0 Gas meters and ancillary devices qualifying for an unconditionally lengthened initial reverification period

4.1 Granting of an unconditionally lengthened initial reverification period to qualifying meters

An unconditionally lengthened initial reverification period may be granted to qualifying gas meters and ancillary devices (listed in Table 1):

1. initially verified on or after their assigned applicability date, or
2. retroactively, if still within an initial reverification period as of their assigned applicability date and if not subjected to calibration adjustments or component exchanges during that period.

4.2 Granting of subsequent reverification periods to qualifying meters

4.2.1 Exception

The subsequent reverification period associated with a lengthened initial reverification period may not be granted retroactively to qualifying gas meters and ancillary devices (listed in Table 1) that are still within a subsequent reverification period as of the assigned applicability date.

4.2.2 Reserviced and reverified gas meters and ancillary devices

The subsequent reverification period associated with a lengthened initial reverification period may be granted to qualifying gas meters and ancillary devices (listed in Table 1) that are reserviced and reverified by 100% inspection or acceptance sampling on or after the assigned applicability date.

4.2.3 Renewed and reverified gas meters and ancillary devices

A subsequent reverification period equal in duration to a lengthened initial reverification period may be granted to qualifying gas meters and ancillary devices (listed in Table 1) that are renewed and reverified on or after the assigned applicability date.

4.2.4 Compliance sampled gas meters and ancillary devices

Where qualifying gas meters and ancillary devices (listed in Table 1) are compliance sampled on or after their assigned applicability date, the available reverification period extensions are based on the applicable lengthened initial reverification period.

5.0 Gas meters and ancillary devices qualifying for a conditionally lengthened initial reverification period

5.1 Granting of a conditionally lengthened initial reverification period

A conditionally lengthened initial reverification period may be granted to qualifying gas meters and ancillary devices (listed in Table 2) initially verified on or after the assigned applicability date, subject to the following conditions:

1. Interim sampling in accordance with specification S-S-05 is to be successfully completed by the date given in Table 2.
2. Full adherence to the requirements of bulletin GEN-27 for recording initial reverification periods is required.

5.2 Upgrading qualification from conditional to unconditional

Gas meters and ancillary devices (listed in Table 2) satisfying the conditions under section 5.1 will be moved to Table 1 and have their lengthened initial reverification period recognized as unconditional. As required by bulletin GEN-27, affected meter owners will be required to update their meter records to reflect the lengthened initial reverification period.

5.3 Conditions for qualification not met

Gas meters and ancillary devices (listed in Table 2) not satisfying the conditions under section 5.1 will be moved to Table 3 and have their qualification for a conditionally lengthened initial reverification period revoked.

6.0 Gas meters and ancillary devices no longer qualifying for a lengthened initial reverification period

6.1 Revocation of unconditionally lengthened initial reverification period

Where performance results at preceding, interim or future inspections are found to be unsatisfactory, gas meters and ancillary devices listed in Table 1 may be moved to Table 3 and have their qualification for an unconditionally lengthened initial reverification period revoked.

7.0 Revisions

The purpose of revision 7 was to:

• reformat the document and adhere to plain language rules
• add an electronic volume conversion device to Table 1
• add an electronic volume conversion device to Table 2
• correct the applicability date in Table 1 for the Sensus Sonix 25 meter from 2010 to 2016

The purpose of revision 6 was to:

• add an electronic volume conversion device to Table 2
• add requirements for meters qualifying for a conditionally lengthened initial reverification period
• make additional minor editorial changes

The purpose of revision 5 was to:

• add ultrasonic meters that have qualified for a lengthened initial reverification period
• make editorial changes to subsection 5.2
• include ultrasonic meters in clause 5.3(a)

The purpose of revision 4 was to:

• add tables 2 and 3
• move certain Elster American Meter diaphragm meter models from Table 1 to Table 3 and communicate the suspension of their qualification for a lengthened initial reverification period

The purpose of revision 3 was to replace the footnote in Table 1 with more detailed policy requirements for granting lengthened initial, and associated subsequent, reverification periods to qualified meters.

The purpose of revision 2 was to add electronic volume conversion devices with pressure or pressure and temperature conversion functions that have qualified for a lengthened initial reverification period.

The purpose of revision 1 was to add temperature only electronic volume conversion devices that have qualified for a lengthened initial reverification period.