PS-S-01 — Provisional Specifications for the Processing and Analysis of Defective Meters Discovered during Compliance Sampling (and amendment to LMB-EG-04)

PS-S-01—Provisional Specifications for the Processing and Analysis of Defective Meters Discovered during Compliance Sampling (and amendment to LMB-EG-04) (PDF, 29 KB, 2 pages)

Category: STATISTICS
Provisional Specification: PS-S-01
Document(s):
Issue Date: 1999-03-26
Effective Date: 1999-03-26
Supersedes:

Table of Contents

1.0 Scope

These specifications apply to the processing and analysis of defective meters discovered during the compliance sampling of lots of in-service meters in accordance with Measurement Canada publication LMB-EG-04: 1988: Statistical Sampling Plans for the Verification and Reverification of Electricity and Gas Meters.

2.0 Authority

These specifications are issued under the authority of section 19 of the Electricity and Gas Inspection Regulations.

3.0 Definitions

Defect

means a departure of a quality characteristic from its intended level or state that occurs with a severity sufficient to cause a meter not to satisfy normal usage requirements. A defect may result from process deficiencies in the areas of meter design, manufacturing, refurbishing, testing, installation, usage, removal, handling, transportation, or storage.

Defective Meter

means a meter possessing one or more defects.

Meter Owner

includes any person or organization acting in the capacity of an agent of the owner.

4.0 Amendment

Clause 4.3.4 of LMB-EG-04: 1988: Statistical Sampling Plans for the Verification and Reverification of Electricity and Gas Meters is revoked and the following substituted therefor:

"4.3.4 All sample meters selected but not involved in the final calculations shall be accounted for by the meter owner and the reasons for exclusion shall be documented and, on request, made available for Measurement Canada review. Evidence of deliberate exclusion or improper accounting may disqualify the results of the sample's analysis.

4.3.5 Each defective meter excluded from the final calculations shall be preserved for Measurement Canada review and shall be the subject of an investigation by the meter owner to determine the cause of the defect or defects. A report shall be prepared and shall include the following information associated with this investigation:

  1. details of the meter's make, model, seal year, and identification numbers;
  2. a description of the defect and its effect on the meter's operation, including performance test results where feasible;
  3. a description of the steps taken to investigate the cause of the defect, including identification of the personnel both performing the investigation and providing information for its purpose;
  4. an explanation of how the defect occurred, including where it occurred in the process;
  5. an evaluation of the extent of the defect in the immediate situation as well as in situations likely to be similarly affected; and
  6. details of the corrective and preventive action proposed or performed to address the cause and symptoms of the defect.

4.3.6 In cases where a defective meter is encountered, the report required by clause 4.3.5 and the information required by clause 4.3.4 shall be provided to the local Measurement Canada representative for review prior to deciding upon the acceptability of the affected lot. Decisions regarding acceptability of the affected lot and the possible need for further investigation or corrective action shall not be made until Measurement Canada has evaluated the report and the statistical analysis of the data from the sample meters involved in the final calculations."

Alan E. Johnston
President
Measurement Canada