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GB/T 43944-2024: Measure method of weighted sound insulation index of ship internal material
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 43944-2024 | English | 359 |
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Measure method of weighted sound insulation index of ship internal material
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GB/T 43944-2024
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Basic data | Standard ID | GB/T 43944-2024 (GB/T43944-2024) | | Description (Translated English) | Measure method of weighted sound insulation index of ship internal material | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U04 | | Classification of International Standard | 47.020.01 | | Word Count Estimation | 18,163 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43944-2024: Measure method of weighted sound insulation index of ship internal material---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 47:020:01
CCSU04
National Standards of People's Republic of China
Measurement method of weighted sound insulation index of ship interior materials
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed and coordinated by the National Technical Committee for Standardization of Marine Vessels (SAC/TC12):
This document was drafted by: The 11th Research Institute of China State Shipbuilding Corporation and Shanghai Waigaoqiao Shipbuilding Co:, Ltd:
The main drafters of this document are: Yan Qing, Wang Xuan, Yu Hang, Gu Hongbin, Chu Yunze, Huang Minjian, Wang Xu, Zhang Yunsong, Jiang Jun, Zhou Wenxin, Wu Chenfei,
Qu Xiaoling, Sheng Lixian, Wu Chuanwei:
Measurement method of weighted sound insulation index of ship interior materials
1 Scope
This document describes the measurement equipment, test pieces, measurement conditions, measurement requirements, and measurement data processing for measuring the weighted sound insulation index of marine sound insulation structures:
Management and test report:
This document applies to the weighted sound insulation index of wall panels, ceilings, doors, windows, ship bulkhead structures and deck structures used on ships:
Measurement:
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this text:
For documents with no date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies:
in this document:
GB/T 3241 Electroacoustic octave and fractional octave filters
GB/T 3785:1-2023 Electroacoustic sound level meter Part 1: Specification
GB/T 15173-2010 Electroacoustic sound calibrator
GB/T 19889:1-2005 Acoustics - Measurement of sound insulation of buildings and building elements - Part 1: Laboratory test of suppressed lateral sound transmission
Test facility requirements
GB/T 19889:2 Acoustics - Measurement of sound insulation of buildings and building components - Part 2: Evaluation and application of measurement uncertainty
verberation room
ISO 717-1:2020 Acoustics - Evaluation of sound insulation of buildings and building elements - Part 1: Airborne sound insulation
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
The ratio of the spatial and temporal average of the square of the sound pressure to the square of the reference sound pressure:
Note: Spatial average refers to the entire test room, but does not include the area directly radiated by the sound source or the area close to the boundary (such as wall, etc:):
3:2
Sound reduction index
The ratio of the sound power incident on the test piece (W1) to the transmitted sound power through the test piece (W2):
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