Tagasi

EVS-EN 13487:2019

Heat exchanger - Forced convection air cooled refrigerant condensers and dry coolers - Sound measurement

Üldinfo
Kehtiv alates 15.08.2019
Alusdokumendid
EN 13487:2019
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
15.08.2019
Põhitekst
09.07.2004
Põhitekst
1.1 General
This document is one of a series dedicated to air-cooled heat exchangers.
- forced convection air cooled refrigerant condensers as specified in EN 327;
- forced convection unit air coolers for refrigeration as specified in EN 328;
- air cooled liquid coolers "dry coolers" as specified in EN 1048.
This document provides information for assessing and presenting the acoustic emission characteristics of heat exchangers under stationary operating conditions.
This document is applicable to selfstanding forced convection air cooled refrigerant condensers and air cooled liquid coolers "dry coolers" and air coolers.
1.2 Size of source
The method specified in EN ISO 3744, EN ISO 3745, EN ISO 3746, EN ISO 9614-1, EN ISO 9614-2 and EN ISO 9614-3 is applicable to noise sources of any size. Limitations for the size of the source are given in 1.3 of EN ISO 3741:2010, EN ISO 3743-1:2010 and EN ISO 3743-2:2009.
1.3 Object
This document offers ways to determine the sound power level of units. Some of them are specifically adapted to provide results with low uncertainties, by using laboratory class or engineering class acoustic methods under highly controlled working conditions. Those results are suitable for certification, labeling and marking purposes.
This document is concerned with objective methods for determining sound power levels LW, expressed in decibels (dB) with reference to a sound power of one picowatt (1 pW), of airborne acoustical noise within the specified frequency range of interest and for prescribed operating conditions of the appliance to be measured:
- A-weighted sound power level, LWA;
- spectral sound power levels;
- emission sound pressure level at workplace, LpA.
*
*
*
PDF
20,74 € koos KM-ga
Paber
20,74 € koos KM-ga
Sirvi standardit alates 2,44 € koos KM-ga
Standardi monitooring

Teised on ostnud veel

Põhitekst

EVS-EN ISO 13857:2019

Masinaohutus. Ohutusvahemikud, mis väldivad käte ja jalgade ulatumist ohualasse
Uusim versioon Kehtiv alates 01.11.2019
Põhitekst

EVS-EN IEC 60721-3-4:2019

Classification of environmental conditions - Part 3-4: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations
Uusim versioon Kehtiv alates 01.08.2019
Põhitekst

EVS-EN ISO 15609-1:2019

Metallide keevitusprotseduuride spetsifitseerimine ja kvalifitseerimine. Keevitusprotseduuri spetsifikaat. Osa 1: Kaarkeevitus
Uusim versioon Kehtiv alates 15.10.2019
Põhitekst + muudatus

EVS-EN 12449:2016+A1:2019

Copper and copper alloys - Seamless, round tubes for general purposes
Kehtetu alates 17.07.2023