BS EN 1776:2015 - Gas infrastructure. Gas measuring systems. Functional requirements

BS EN 1776:2015

Gas infrastructure. Gas measuring systems. Functional requirements

Status : Current   Published : December 2015



This European Standard specifies functional requirements for the design, construction, testing, commissioning/decommissioning, operation, maintenance and, where appropriate, calibration, together with suitable documented provisions for all new gas measuring systems and any major changes of existing systems.

This European Standard also specifies accuracy classes of measuring systems and thresholds applicable to these classes. Demonstration of compliance is achieved through the selection, installation and operation of appropriate measurement instruments, together with suitable documented provisions for calculations. Examples of demonstration of compliance are provided for each accuracy class; however, they are not prescriptive solutions.

This European Standard is applicable for gases of the 2nd family as classified in EN 437. It is also applicable for treated non-conventional combustible gases complying with EN 437 and for which a detailed technical evaluation of the functional requirements (such as injected biomethane) is performed ensuring there are no other constituents or properties of the gases that can affect the metrological and physical integrity of the measuring systems.

This European Standard can also be used as a guideline for 1st and 3rd family gases as classified in EN 437; however additional considerations should be taken with regard to the different constituents and physical characteristics of the gas family.

This European Standard is not applicable for raw or sour gases.

This European Standard is not applicable for gas measurement in CNG filling station.

This European Standard gives guidelines when designing, installing and operating gas meters with additional functionalities (smart gas meters).

Communication protocols and interfaces for gas meters and remote reading of gas meters are outside the scope of this European Standard and are covered by the appropriate parts of EN 13757, which provide a number of protocols for meter communications. Supervisory control and data acquisition protocols (SCADA) are also not covered by this European Standard.

Unless otherwise specified all pressures used in this European Standard are gauge pressures.

For associated pressure regulating systems the requirements of EN 12186 and/or EN 12279 apply.

For requirements on design, housing, lay-out, materials for components, construction, ventilation, venting and overall safety of gas measuring systems within the scope of this European Standard, EN 15001, EN 12186, EN 12279 and/or EN 1775 apply additionally, where relevant.

This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or codes of practice may exist in the CEN member countries.

This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above mentioned basic principles.

In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, national legislation/regulation takes precedence as illustrated in CEN/TR 13737‑1 and CEN/TR 13737‑2.

CEN/TR 13737 (all parts) gives:

  • clarification of all legislation/regulations applicable in a member state;

  • if appropriate, more restrictive national requirements;

  • a national contact point for the latest information.

Standard NumberBS EN 1776:2015
TitleGas infrastructure. Gas measuring systems. Functional requirements
Publication Date31 December 2015
Normative References(Required to achieve compliance to this standard)EN 1359, EN 1594, EN 1775, EN 12186, EN 12261, EN 12279, EN 12327, EN 12405-1, EN 12405-2, EN 12405-3, EN 12480, EN 13463-1, EN 15001-1, EN 15001-2, EN 60079-10-1, IEC 60079-10-1, EN 60079-14, IEC 60079-14, EN 60079-17, IEC 60079-17, EN 61000, EN ISO 5167-1, ISO 5167-1, EN ISO 5167-2, ISO 5167-2, EN ISO 6141, ISO 6141, EN ISO 6142-1, ISO 6142-1, EN ISO 6143, ISO 6143, EN ISO 6975, ISO 6975, EN ISO 10715, ISO 10715, EN ISO 10723, ISO 10723, EN ISO 12213-1, ISO 12213-1, EN ISO 15970, ISO 15970, ISO 2186, ISO 10790, ISO 17089-1
Informative References(Provided for Information)EN 334, EN 437, EN 1127-1, EN 12007-1, EN 12007-2, EN 12007-3, EN 12007-4, EN 13757, EN 14236, EN 16314, EN 24006, ISO 4006:1991, EN 60079-29-1, IEC 60079-29-1, EN ISO 9000, ISO 9000, EN ISO 9001, ISO 9001, EN ISO 9004, ISO 9004, EN ISO 13443, ISO 13443, EN ISO 15112, ISO 15112, EN ISO 15796, ISO 15796, EN ISO/IEC 17025, ISO/IEC 17025, ISO 5168, EN ISO 6974, EN ISO 6976, ISO 6976, EN ISO 12213-2, ISO 12213-2, EN ISO 12213-3, ISO 12213-3, ISO 10012, ISO 15971, CEN/CLC/ETSI TR 50572, 2004/22/EC, 2004/108/EC, OIML R 140, OIML R 137-1 & 2, ISO/IEC Guide 98-1, ISO/IEC Guide 98-3, GUM:1995, ISO/IEC Guide 98-4, ISO/TR 9464, ISO 12764, JCGM 100, JCGM 101, JCGM 104, JCGM 105, JCGM 106, JCGM 107, ISO/IEC Guide 98-5
ReplacesBS EN 1776:1999
International RelationshipsEN 1776:2015
Draft Superseded By13/30277457 DC
DescriptorsGas-supply meters, Gas supply, Natural gas, Measuring instruments, Measurement, Flow measurement, Data stations, Design, Commissioning, Maintenance, Performance, Industrial, Service pressure, Volume, Ratings, Calibration, Acceptance (approval), Density measurement, Calorific value, Safety measures, Performance testing, Testing conditions, Stability, Errors, Electronic equipment and components, Pipework systems, Technical documents, Vibration, Pulsating flow, Equations, Conversion (units of measurement), Accuracy, Records (documents), Bibliography
Title in FrenchInfrastructures gazières. Systèmes de mesure de gaz. Prescriptions fonctionnelles
Title in GermanGasinfrastruktur. Gasmesssysteme. Funktionale Anforderungen
ISBN978 0 580 81787 8
File Size1.548 MB

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