Le dernier examen de cette norme date de 2022.
Cette édition reste donc d’actualité.
Résumé
PrévisualiserISO 20155:2017 specifies a test method for determining flow induced in-pipe noise source characteristics of a ship-used pump as a two-port sound source in laboratory conditions by measuring acoustic pressures in the pipe reaches of inlet and outlet.
The test method is applicable to all types of centrifugal pumps with a diameter over 50 mm operating under steady conditions.
The suitable frequency range of the test method is about 10 Hz to 1 000 Hz, and the upper frequency is dependent on the inner diameter of the pipe, in which the plane acoustic wave propagates.
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État actuel: PubliéeDate de publication: 2017-08
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Edition: 1
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- ICS :
- 47.020.01 Normes générales relatives à la construction navale et aux structures maritimes
Acheter cette norme
fr
Format | Langue | |
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std 1 124 | PDF + ePub | |
std 2 124 | Papier |
- CHF124
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