GB/T 8485-2008The graduation and test for airborne sound insulating properties of windows and doors (English PDF)
建筑门窗空气声隔声性能分级及检测方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 30, 2008
Implementation date
March 1, 2009
Scope
GB/T 8485-2008 is the English-translated version of 建筑门窗空气声隔声性能分级及检测方法.
GB/T 8485-2008 is the Chinese standard "The graduation and test for airborne sound insulating properties of windows and doors". Its scope clause reads: This standard specifies the doors and windows of airborne sound insulation performance classification, test methods and test reports.
This standard applies to doors and windows of airborne sound insulation performance rating and testing. Other acoustic requirements can refer to the use of windows and doors. Its clauses include terms and definitions.
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Document preview — GB/T 8485-2008
National Standard of the People's Republic of China
- ICS
- 91.060.50
- Classification
- P 32
- Replacing
- GB/T 16730-1997
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This standard specifies the doors and windows of airborne sound insulation performance classification, test methods and test reports.
This standard applies to doors and windows of airborne sound insulation performance rating and testing. Other acoustic requirements can refer to the use of windows and doors.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, according to research encourages the parties to the agreement
Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 3947 Acoustics Terminology
GB/T 5823 building windows and doors term
GB/T 15173-1994 acoustic calibrator (eqv IEC 60942. 1988)
GB/T 19889.1 Acoustics Measurement of sound insulation buildings and building elements - Part 1. suppressed flanking transmission of laboratory testing facility
Requirements (GB/T 19889.1-2005, ISO 140-1, IDT)
GB/T 19889.3-2005 Acoustics Measurement of sound insulation buildings and building elements - Part 3. airborne sound insulation of building elements experiment
Chamber measurements (ISO 140-3, IDT)
GB/T 50121 construction noise evaluation criteria
3 Terms and Definitions
The term and the following terms and definitions GB/T 3947 and GB/T 5823 established in this standard applies.
3.1
Sound power transmitted through the specimen and the ratio of incident to incident acoustic power of the specimen on the formula (1).
tau = WtauWi (1)
Where.
Wtau --- transmitted through the specimen sound power in watts (W);
Wi --- sound power incident on the incident on the specimen, in watts (W).
3.2
Sound power incident on the specimen and the transmission ratio of the transmission power of the sound specimens, taking the logarithm of base 10 multiplied by 10 decibels (dB).
Sound insulation and sound transmission coefficient tau R has the following relationship.
R = 10lg1tau (2)
tau = 10-R/10 (3) […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 47267-2026Railway applications - Windows for rolling stock - Bodyside windows
- GB/T 47600.4-2026Product information description for e-commerce transactions - Part 4: Home building materials
- JC/T 2080-2026Aluminium-wood window and door
- JC/T 2081-2026Solid wood door and wi ndow
- GB 16809-2024Fire resistant windows
- GB/T 41659-2022General technical requirements for medical doors of building
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Editions of GB/T 8485
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 8485-2008 | The graduation and test for airborne sound insulating properties of windows and doors | current edition | Current |
| GB/T 16730-1997 | The graduation and test for airborne sound insulating properties of windows and doors | previous edition | Superseded |
This page sells the current edition, GB/T 8485-2008. Earlier editions are listed for reference only.
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