Metrologi och mätning. Fysikaliska fenomen

Ämnesområden: Flöde i öppen kanaler
Kommittébeteckning: SIS/TK 432 (Hydrometri)
Källa: CEN
Svarsdatum: den 1 sep 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.

Ämnesområden: Flöde i öppen kanaler
Kommittébeteckning: SIS/TK 432 (Hydrometri)
Källa: ISO
Svarsdatum: den 2 sep 2020
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This International Standard specifies the typical requirements of instrumentation for measuring liquid precipitation, primarily for the purpose of hydrological and meteorological observation. Its scope is limited to both non-recording and recording catching-type precipitation gauges for the measurement of liquid precipitation. The standard covers design criteria for the gauges and elements of uncertainty that need to be considered in their construction.

This International Standard is supplemented by an annex providing guidance on the types of catching-type liquid precipitation measuring gauges currently available and the measurement uncertainty associated with them (see Annex A).

Kommittébeteckning: SIS/TK 380 (Ergonomi)
Källa: CEN
Svarsdatum: den 19 sep 2020
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This document specifies the required data for lamps and luminaires for the verification of conformity to the requirements of EN 1838. This document does not define the data requirements for signage, as these can be found in EN 1838.

This document is used in conjunction with EN 13032-1 and EN 13032-4.

This document specifies the requirements for emergency lighting with or without a replaceable light source. For luminaires with a non-replaceable light source data should always be given for the luminaire. For luminaires with a replaceable light source, light source data should be provided in addition to luminaire data.

NOTE Product, safety and performance data can be found in CENELEC documents (see Bibliography).