OIML G 20 : 2017
Current
The latest, up-to-date edition.
SURVEILLANCE OF UTILITY METERS IN SERVICE ON THE BASIS OF SAMPLING INSPECTIONS
26-12-2017
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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