Obecné normy

Oblast zaměření: Struktura povrchu
Komise : CEN/TC 290 (Dimensional and geometrical product specification and verification)
Původce: CEN
K připomínkám do: 20.07.2020
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This document specifies the acceptance tests for verifying the performance of an optical CMS (Coordinate Measuring System) when measuring lengths as stated by the manufacturer. It also specifies the reverification tests that enable the user to periodically reverify the performance of the optical 3D CMS.

An optical 3D CMS that this standard intends to specify is a contactless area measuring sensor delivering 3D data in several individual single views by an optical measuring principle and transforming it into a common coordinate system. Typical optical measuring principles are pattern projection, fringe projection, and project-and-sweep a scanned line, or similar, delivering single views without assistance of external information related to position and orientation of the objects to be scanned relative to the CMS. Typical registration principles are based on a best fitting of commonly captured position information across at least two different single views, either or both by using reference targets or surface features of the objects to be scanned.

This standard applies to verification of the measuring performance of CMSs in case the surface characteristics (e.g. glossiness, colour) of the object to be scanned are restricted and within a cooperative range.

This standard does not explicitly apply to other types of CMSs, including those standardized by the other parts of ISO 10360 or other standards. In the list below, a metrological moving carrier is a mover equipped with scales measuring the position and/or orientation of the probing system, to be used as essential information for the determination of the measurement result.

•      tactile CMMs (Cartesian metrological moving carrier): ISO 10360-2,

•      imaging CMMs (Cartesian metrological moving carrier): ISO 10360-7,

•      CMMs equipped with optical distance sensors (Cartesian metrological moving carrier): ISO 10360-8,

•      laser trackers: ISO 10360-10,

•      X-ray CTs: ISO 10360-11,

•      articulated arm CMMs (anthropomorphic metrological moving carrier): ISO 10360-12,

•      measuring instruments intended to measure surface characteristics: ISO 25178,

•      optical microscopes,

•      hand-held laser line(s) scanners.

Parties may apply this part of 10360 to the above or other type CMSs by mutual agreement.

This part of ISO 10360 specifies:

— performance requirements that can be assigned by the manufacturer or the user of the CMS,

— the manner of execution of the acceptance and reverification tests to demonstrate the stated requirements,

— rules for verifying conformance, and

— applications for which the acceptance and reverification tests can be used.

Note 1: Annex E describes possible limitations with regard to less cooperative surface characteristics, e.g. colour, glossiness and roughness, and provides a suggested test that may give CMS users an idea of how representative the maximum permissible error would be when measuring their specific industrial part.

Note 2: The optical 3D CMS can be moved and positioned by a manually or automated moving unit. The position and/or orientation can be used as additional information for the registration.

Note 3: The acceptance and reverification tests are designed to mimic real but simple measurements occurring in practice, subject to the rated operating conditions and the testing procedures. The user is advised to consider the influence of additional or omitted conditions and/or procedural steps when applying the test results according to this standard to predict the performance of an actual CMS.

Oblast zaměření: Měřidla
Komise : CEN/TC 237 (Gas meters)
Původce: CEN
K připomínkám do: 20.07.2020
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This document specifies requirements and tests for the construction, performance and safety of class 1,5 Capillary Thermal-Mass Flow sensor gas meters (hereinafter referred to as meter(s)). This applies to meters having co-axial single pipe, or two pipe connections, that are used to measure volumes of fuel gases of the 2nd and/or 3rd family, as given in EN 437:2018.

In general, the term “thermal mass flow meters” applies to a flow-measuring device using heat transfer to measure and indicate gas flowrate, as defined in ISO 14511.

NOTE 1       Although the word “mass” is present in the definition of the measurement principle, gas meters covered by this document provide measurement of gas at base conditions of temperature and pressure.

These meters have a maximum working pressures not exceeding 0,5 bar and a maximum flowrate not exceeding 160 m3⋅h−1 over a minimum ambient temperature range of −10 °C to +40 °C and a gas temperature range as specified by the manufacturer with a minimum range of 40 K.

This document applies to meters indicating volume at base conditions, which are installed in locations with vibration and shocks of low significance. It applies to meters in:

—    closed locations (indoor or outdoor with protection, as specified by the manufacturer) with condensing humidity or with non-condensing humidity;

or, if specified by the manufacturer:

—    open locations (outdoor without any covering) both with condensing humidity or with non-condensing humidity;

and in locations with electromagnetic disturbances likely to be found in residential, commercial and light industrial use.

For meters which indicate unconverted volume reference can be made to Annex C.

Unless otherwise stated, all pressures given in this document are gauge pressures.

Requirements for electronic indexes, valves and additional requirements for batteries incorporated in the meter and any other additional functionalities are given in EN 16314:2013.

Unless otherwise stated in a particular test, the tests are carried out on meters that include additional functionality devices intended by the manufacturer.

Clauses 1 to 13 are for design and type testing only.

Oblast zaměření: Měřidla
Komise : CEN/TC 294 (Communication systems for meters and remote reading of meters)
Původce: CEN
K připomínkám do: 27.07.2020
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This document specifies data exchange and communications for meters in a generic way.

This document establishes a protocol specification for the Application Layer for meters and establishes several protocols for meter communications which can be applied depending on the application being fulfilled.

This document also specifies the overall structure of the OBject Identification System (OBIS) and the mapping of all commonly used data items in metering equipment to their identification codes.”

NOTE          Electricity meters are not covered by this document, as the standardization of remote readout of electricity meters is a task for CENELEC/IEC.

Oblast zaměření: Měřidla
Komise : CEN/TC 318 (Hydrometry)
Původce: CEN
K připomínkám do: 10.08.2020
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This International Standard specifies methods for determining the velocity and cross-sectional area of water flowing in open channels and for calculating the discharge employing point velocity measurement devices.

It covers methods using rotating element Current Meters, Acoustic Doppler Velocimeters (ADV), Acoustic Doppler Velocity Profiler (ADVP) – Stationary method, Surface Velocity measurement including floats and other surface velocity systems.

Although some general procedures are discussed, it does not describe in detail how to use or deploy these systems. For detailed procedures, reference should be made to guidelines from instrument manufacturers and appropriate public agencies.

Oblast zaměření: Systémy zpracování informací
Komise : CEN/CLC/JTC 13 (Cybersecurity and data protection)
Původce: CEN
K připomínkám do: 10.08.2020
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This document provides requirements for manufacturers and/or service providers to implement Data protection and Privacy by Design and by Default (DPbDD) early in their development of their products and services, i.e. before (or independently of) any specific application integration, to make sure that they are as privacy ready as possible. The document will be applicable to all business sectors, including the security industry.

Oblast zaměření: Systémy zpracování informací
Komise : CEN/TC 287 (Geographic Information)
Původce: CEN
K připomínkám do: 22.08.2020
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This document specifies a conceptual schema for locations relative to a one-dimensional object as measurement along (and optionally offset from) that object. It defines a description of the data and operations required to use and support linear referencing.

This document is applicable to transportation, utilities, environmental protection, location-based services and other applications which define locations relative to linear objects. Most examples discussed in this document come from the transportation domain for the ease of reading.