BSI 23/30416055 DC:2023 Edition

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BS ISO 4678. Ships and marine technology. Noise measurement method for HVAC system in accommodation spaces

Published By	Publication Date	Number of Pages
BSI	2023	18

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Categories: 47.020.90 - Marine ventilation, air conditioning and heating systems, BSI

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PDF Pages

PDF Title

Foreword

Introduction

1 Scope
2 Normative references
3 Terms and definitions

4 Instrumentation
4.1 Microphone with sound level meter or other microphone amplifier
4.2 Microphone cable
4.3 Frequency analyzer
4.4 Nose cone and windshield
4.5 Sound level recorder or other data sampling devices
4.6 Calibration of instruments

5 General requirements
6 Measurement procedure
6.1 Outlet noise measurement

6.2 Reverberation time measurement

6.3 Result processing
6.3.1 Exhaust outlet noise level
6.3.2 Calculation of the cabin sound absorption

6.3.3 Determination of the vent noise levels
6.4 Measurement uncertainties

7 Measurement report
7.1 Measurement company and personnel
7.2 Ship particulars
7.3 HVAC particulars

7.4 Measuring instruments
7.5 Measuring conditions
7.6 Measurement data

Bibliography

Status	Definitive
Pages	18
Publication Date	2023-01-19
Standard Number	23/30416055 DC
Title	BS ISO 4678. Ships and marine technology. Noise measurement method for HVAC system in accommodation spaces
Identical National Standard Of	ISO 4678
Descriptors	Shipping, Superstructures (ships), Ships, Marine engineering, Marine transportation, Noise measurement (acoustic), Accommodation units (transportable)
Publisher	BSI
Committee	SME/32
ICS Codes	47.020.90 - Marine ventilation, air conditioning and heating systems


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BSI 23/30416055 DC:2023 Edition

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