CEN/TC 92

Water meters

Standardization for meters to measure volume flow of cold potable water and heated water enclosed in full conduits, irrespective of technology applied

P member

CEN/TC 176

Thermal energy meters

Standardization in the field of heat meters, including requirements for accuracy, construction and testing. The scope includes recommendations for installation, commissioning and operation. All types, sizes and working principles are included.

P member

CEN/TC 290

Dimensional and geometrical product specification and verification

Standardization in the field of macro and micro-geometry specification including dimensional and geometrical tolerancing, surface properties and the related verification principles, measuring equipment and calibration requirements.

P member

CEN/TC 318

Hydrometry

The standardization of methods and instrumentation relating to techniques for hydrometric determinations including: - a) velocity, stream flow, level, load transport, erosion, sedimentation, and ice phenomena; in open channels, reservoirs, lakes and seas; - b) precipitation, snow cover and evapotranspirration; - c) infiltration, - d) groundwater, soil moisture and soil frost; - e) standards for data exchange.

P member

CEN/SS F02

Units and symbols

P member

CEN/SS F05

Measuring Instruments

P member

CEN/CLC/JWG NAWI

Non automatic weighing instruments

P member

CEN/TC 141

Pressure gauges - Thermometers - Means of measuring and/or recording temperature in the cold chain

Standardization of basic and general terms, of dimensional and qualitative and safety requirements (dials, scales, accuracy, junction parts : shank, socket, etc., installation accessories) and of test methods for checking fitness for purpose of pressure gauges such as industrial dial pressure gauges, pressure gauges with electrical limit contact devices and pressure gauges for checking the pressure and/or inflation of tyres according to Directive 86/217/EEC of May 1986. Pressure gauges used in welding, cutting and allied processes are excluded (covered by CEN/TC 121).

P member

CEN/TC 244

Measurement of fluid flow in closed conduits

Standardization of generic rules and methods for the measurement of fluid flow in closed conduits, including: - terminology and definitions; - inspection, installation and operation; specifications of instruments and equipment required; conditions under which measurements will be made accurately; recording, processing and interpreting data including error analysis.

P member

CEN/SS I03

Limits and fits

P member

CEN/TC 294

Communication systems for meters

Standardization of communication interfaces for systems with meters and remote reading of meters for all kind of fluids and energies distributed by network. Secure communication covering data privacy as an inherent property, providing a scalable mechanism for security services, data integrity, authentication and confidentiality. Cooperation with CENELEC and ETSI for consistent interface definitions as essential condition for achieving interoperability between entities in systems.

P member

CEN/TC 423

Means of measuring and/or recording temperature in the cold chain

P member

CEN/CLC/JTC 18

Non automatic weighing instruments (NAWI)

P member

CLC/SR 25

Quantities and units

P member

CEN/CLC/JWG NAWI

Non automatic weighing instruments

P member

CEN/CLC/JTC 18

Non automatic weighing instruments (NAWI)

P member

ISO/TC 12

Quantities and units

Standardization of units and symbols for quantities and units (and mathematical symbols) used within the different fields of science and technology, giving, where necessary, definitions of these quantities and units. Standard conversion factors between the various units.

O member

ISO/TC 30

Measurement of fluid flow in closed conduits

Standardization of rules and methods for the measurement of fluid flow in closed conduits including: terminology and definitions; rules for inspection, installation, operation; construction of instruments and equipment required; conditions under which measurements are to be made; rules for collection, evaluation and interpretation of measurement data, including errors.

O member

ISO/TC 113

Hydrometry

Standardization of methods, procedures, instruments, and equipments relating to techniques for hydrometric determination of water level, velocity, discharge and sediment transport in open channels, precipitation and evapotranspiration, availability and movement of ground water, including: terminology and symbols; collection, evaluation, analysis, interpretation and presentation of data; evaluation of uncertainties.

O member

ISO/TC 213

Dimensional and geometrical product specifications and verification

Standardization in the field of geometrical product specifications (GPS), i.e. macro- and microgeometry specifications covering dimensional and geometrical tolerancing, surface properties and the related verification principles, measuring equipment and calibration requirements including the uncertainty of dimensional and geometrical measurement. The standardization includes the basic layout and explanation of drawing indications (symbols). Excluded: the definition of the specific proportions and dimensions of drawing indications (symbols) and their execution.

O member

ISO/TC 30/SC 2

Pressure differential devices

O member

ISO/TC 30/SC 5

Velocity and mass methods

O member

ISO/TC 30/SC 7

Volume methods including water meters

O member

ISO/TC 113/SC 2

Flow measurement structures

O member

ISO/TC 113/SC 5

Instruments, equipment and data management

O member

ISO/REMCO

Committee on reference materials

Membership REMCO membership is open to interested member bodies as participating (P) or observer (O) members and to interested correspondent members as observers (o) members. Terms of reference To establish concepts, terms and definitions related to reference materials. To specify the basic characteristics of reference materials as required by their intended use. To propose actions on reference materials required to support other ISO activities. To prepare guidelines for ISO technical committees when dealing with reference material issues. To communicate with other international organizations on reference material matters. To advise the ISO Technical Management Board (TMB) on reference material issues.

O member

TC 25

Quantities and units

To prepare international standards on quantities and units to be used in electrical technology. Such standards may relate to their definitions, names, letter symbols and use; to the relations in which they appear; and to the signs and symbols used with them.

O member

ISO/TC 334

O member from Jul 7, 2021