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OIML G 20 : 2017

Current

Current

The latest, up-to-date edition.

SURVEILLANCE OF UTILITY METERS IN SERVICE ON THE BASIS OF SAMPLING INSPECTIONS

Published date

26-12-2017

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Foreword
1 Introduction
2 Scope
3 Terminology
4 Carrying out the sampling inspection - General
5 Criteria for the assembly and delimitation of a lot
6 Application for sampling inspection
7 Selection and treatment of the sample utility meters
8 Sampling inspection
9 Sampling plans
10 Test results
Annex 1 - Terminology
Annex 2 - Sampling plans with a Limiting Quality level
          (LQ) of 8% at a consumer risk of 10%
          according to ISO 2859-2 [1]
Annex 3 - Proposals for sampling testing of gas meters
Annex 4 - References

Gives the method and procedure according to which the period of validity of the verification of tility meters forming part of a defined lot is extended if the correctness of the utility meters has been proved by sampling inspections prior to the expiry of the period of validity of the verification.

Committee
TC 3/SC 4
DocumentType
Standard
PublisherName
Organisation Internationale de Metrologie Legale
Status
Current

OIML R 75-3 : 2006 HEAT METERS - PART 3: TEST REPORT FORMAT
OIML R 46-1 & 2 : 2012 ACTIVE ELECTRICAL ENERGY METERS - PART 1: METROLOGICAL AND TECHNICAL REQUIREMENTS; PART 2: METROLOGICAL CONTROLS AND PERFORMANCE TESTS
ISO 3534-4:2014 Statistics — Vocabulary and symbols — Part 4: Survey sampling
ISO 2859-2:1985 Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection
OIML R 75-1 : 2002 HEAT METERS - PART 1: GENERAL REQUIREMENTS
OIML R 46-3 : 2013 ACTIVE ELECTRICAL ENERGY METERS - PART 3: TEST REPORT FORMAT
OIML R 137-1 & 2 : 2012 AMD 2014 GAS METERS - PART 1: METROLOGICAL AND TECHNICAL REQUIREMENTS; PART 2: METROLOGICAL CONTROLS AND PERFORMANCE TESTS
EN 1434-1:2015 Heat meters - Part 1: General requirements
OIML R 75-2 : 2002 HEAT METERS - PART 2: TYPE APPROVAL TESTS AND INITIAL VERIFICATION TESTS
ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability

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