Valid

GB/T 19889.7-2022Acoustics - Measurement of sound insulation in buildings and of building elements - Part 7: Field measurement of impact sound insulation (English PDF)

声学建筑和建筑构件隔声测量第7部分：撞击声隔声的现场测量

Preview PDF

This is a limited preview

Buy now to download the full PDF (69 pages)

Need quotation for your management?

Get a formal quotation for GB/T 19889.7-2022 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

July 11, 2022

Implementation date

February 1, 2023

Scope

GB/T 19889.7-2022 is the English-translated version of 声学建筑和建筑构件隔声测量第7部分：撞击声隔声的现场测量.

GB/T 19889.7-2022 is the Chinese standard "Acoustics - Measurement of sound insulation in buildings and of building elements - Part 7: Field measurement of impact sound insulation".

Its scope clause reads: This document describes the determination of room impact sound insulation by measuring the sound pressure level using an impact source on the floor or stairs of a building.

On-site performance measurement methods, test equipment, measurement procedures, measurement locations, results presentation and test report content.

This document is applicable to the measurement of impact sound insulation performance in the frequency range of 50Hz~5000Hz in rooms with a volume of 10m3~250m3 The measurement results are suitable for quantifying, evaluating and comparing the impact sound insulation performance of rooms, regardless of whether the room is furnished or not, whether it is a diffuse sound field or not. are applicable. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 19889.7-2022

National Standard of the People's Republic of China

Classification: A 59

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Test equipment
4.1 General Requirements
4.2 Calibration
4.3 Verification
5 Frequency range
5.1 Impactor as impact source
5.2 Rubber ball as impact source
6 Rule
7 Routine measurement of sound pressure level
7.1 Overview
7.2 Generation of sound field
7.3 Measurement of fixed microphone position with impactor or rubber ball as impact source
7.4 Mechanized Continuously Moving Microphone Measurements with Impactor as Impact Source
7.5 Manual sweep microphone measurements with impactor as impact source
7.6 Minimum spacing for microphone positions
7.7 Mean time with impactor as impact source
7.8 Calculation of average sound pressure level
8 Low frequency sound pressure level measurement with impactor as impact source
8.1 General
8.2 Generation of the sound field
8.3 Microphone position
8.4 Average time
8.5 Calculation of Indoor Low Frequency Average Impact Sound Pressure Level
9 Background noise (regular measurement and low frequency measurement)
9.1 General
9.2 Correction of signal level by background noise
10 Reverberation time in the receiving room (regular and low-frequency measurements)
10.1 General
10.2 Generation of the sound field
10.3 Routine measurements
10.4 Low Frequency Band Measurements
10.5 Interrupted sound source method
10.6 Impulse response integration
11 Octave Conversion
12 Results Expression
13 Uncertainty
14 Test report
Appendix A (Normative) Impact Sources
Appendix B (normative) Loudspeaker requirements for reverberation time measurement
Appendix C (informative) Additional Guidance
Appendix D (Informative) Horizontal Measurements --- Examples of Suitable Locations for Impact Sources and Microphones
Appendix E (Informative) Vertical Measurements --- Examples of Suitable Locations for Impact Sources and Microphones
Appendix F (Informative) Expression of Results

1 Scope

This document describes the determination of room impact sound insulation by measuring the sound pressure level using an impact source on the floor or stairs of a building.

On-site performance measurement methods, test equipment, measurement procedures, measurement locations, results presentation and test report content.

This document is applicable to the measurement of impact sound insulation performance in the frequency range of 50Hz~5000Hz in rooms with a volume of 10m3~250m3

The measurement results are suitable for quantifying, evaluating and comparing the impact sound insulation performance of rooms, regardless of whether the room is furnished or not, whether it is a diffuse sound field or not.

are applicable.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 3241 Electroacoustic Octave and Fractional Octave Filters (GB/T 3241-2010, IEC 61260.1995, MOD)

GB/T 3785.1 Electroacoustic Sound Level Meter Part 1.Specification (GB/T 3785.1-2010, IEC 61672-1..2002, IDT)

GB/T 15173 Electroacoustic Acoustic Calibrator (GB/T 15173-2010, IEC 60942.2003, IDT)

GB/T 17312 Random Incidence and Diffuse Field Calibration of Sound Level Meters (GB/T 17312-1998, eqvIEC 61183.1994)

GB/T 19889.2 Acoustic Building and Building Components Sound Insulation Measurement Part 2.Measurement Uncertainty Evaluation and Application (GB/T 19889.2-2022, ISO 12999-1.2020, MOD)

GB/T 25079 Acoustics - Application of new measurement methods in building acoustics and room acoustics - MLS and SS methods (GB/T 25079-2010, ISO 18233.2006, IDT)

GB/T 27025 General requirements for the competence of testing and calibration laboratories (GB/T 27025-2019, ISO /IEC 17025.2017, IDT)

GB/T 36075.2 Acoustic Room Acoustic Parameters Measurement Part 2.Ordinary Room Reverberation Time (GB/T 36075.2-2018,

ISO 3382-2.2008, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document.

Note. The ISO and IEC standard terminology database URLs are as follows.

3.1 Li

Taking the impactor as the impact source, the ratio of the average value of space and time of the square of the indoor sound pressure to the square of the reference sound pressure is the logarithm to the base of 10

Multiplied by 10, the spatial average refers to the average of the central area of the room where the effect of near-field radiation at the boundary of the room is negligible.

Note. Li is expressed in decibels (dB).

GB/T 20247 | GB/T 19890 | GB/T 18696.2 | GB/T 19889.3 | GB/T 19889.1 | GB/T 19889.2 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 69 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 61260.1995 · IEC 61672 · IEC 60942.2003 · ISO 12999 · ISO 18233.2006 · IEC 17025.2017 · ISO 3382

Cited by

GB/T 19889.14-2010Acoustics -- Measurement of sound insulation in buildings and of building elements -- Part 14: Guidelines for special situations in the field

How to Download GB/T 19889.7-2022

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.