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GB/T 16538-2008: Acoustics -- Determination of sound power levels of noise sources using sound pressure -- Comparison method in situ
Status: Valid GB/T 16538: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16538-2008 | English | 374 |
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Acoustics -- Determination of sound power levels of noise sources using sound pressure -- Comparison method in situ
| Valid |
GB/T 16538-2008
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| GB/T 16538-1996 | English | 759 |
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5 days [Need to translate]
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Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using a reference sound source
| Obsolete |
GB/T 16538-1996
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PDF similar to GB/T 16538-2008
Basic data | Standard ID | GB/T 16538-2008 (GB/T16538-2008) | | Description (Translated English) | Acoustics -- Determination of sound power levels of noise sources using sound pressure -- Comparison method in situ | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A59 | | Classification of International Standard | 17.140 | | Word Count Estimation | 19,193 | | Date of Issue | 2008-07-02 | | Date of Implementation | 2009-02-01 | | Older Standard (superseded by this standard) | GB/T 16538-1996 | | Quoted Standard | GB/T 3241-1998; GB/T 4129; GB/T 14573.1; GB/T 15173-1994; IEC 61672-1-2002 | | Adopted Standard | ISO 3747-2000, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the sound source, in particular non- moving sound source sound power levels of on-site method. This standard uses the comparison method, all measurements are made octave band. Measurement uncertainty depends on the test environment. Measurement uncertainty is described with a spatial sound field distribution in comparison indicated value estimate. Accuracy level or project level, or a simple level. The measured sound power level of the sound source of the sound source and standards by the sound source at a predetermined measurement points were generated at the SPL calculated from measured values ??. Sound power level is calibrated reference sound source measured value and the measured value and the standard sound source sound source calculated by the difference between the measured value. All calculations are carried out by octave band, A- weighted sound power level determined by the octave band values ??. | GB/T 16538-2008: Acoustics -- Determination of sound power levels of noise sources using sound pressure -- Comparison method in situ
---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.
Acoustics. Determination of sound power levels of noise sources using sound pressure. Comparison method in situ
ICS 17.140
A59
National Standards of People's Republic of China
GB/T 16538-2008/ISO 3747.2000
Replacing GB/T 16538-1996
Determination of sound power levels of noise sources using sound pressure
Comparison site
(ISO 3747.2000, IDT)
Posted 2008-07-02
2009-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Test Method 2
5 Measurement Uncertainty 3
6 Instruments 3
6.1 Instrument System 3
6.2 Calibration 3
7 under test conditions sound source 4
8 preliminary measurement 4
4 8.1 background noise
8.2 Characteristics of the measured sound source 4
Position 9 standard sound source 5
5 9.1 a single location
9.2 plurality of positions 5
10 measurement process 5
Select the location of the microphone 5 10.1
10.2 Measurement 6
6 10.3 Fixed background noise
10.4 Measurement Uncertainty Evaluation 6
11 Calculation of sound power levels 7
12 record content 7
8 13 report
Appendix A (normative) calculation and measurement uncertainty ΔLf 9
Appendix B (informative) using only a single standard sound source, the recommended standard sound source and the microphone position 11
Annex C (normative) References 14
GB/T 16538-2008/ISO 3747.2000
Foreword
This standard is one noise source sound power level determination of a series of standard GB/T 14367 relating to sound pressure.
This standard is identical with ISO 3747.2000 "Determination of sound pressure of sound power levels of noise sources on-site comparison", and
GB/T 16538-1996 "sound pressure Determination of sound power levels of noise sources using standard sound source Law" revised.
This standard compared with GB/T 16538-1996, the main changes are as follows.
--- Increased introduction;
--- In addition to A-weighted sound power level, but also increased the non-weighted sound power level measurements;
--- Increased measurement uncertainty content;
--- Accuracy classes include simple level and project level;
--- Requiring the use of Class 1 sound level meter, or similar equipment.
Appendix A of this standard is a normative appendix, Appendix B, Appendix C is informative appendix.
This standard was proposed by the Chinese Academy of Sciences.
This standard by the National Standardization Technical Committee of Acoustics (SAC/TC17) centralized.
This standard was drafted. Acoustics, Chinese Academy of Sciences, Hefei University of Technology, Nanjing Chang Rong Noise Control Engineering Co., Ltd., Tongji
Science, Nanjing University, Zhejiang University, Beijing Acoustical Engineering Co., Ltd. Green Year.
The main drafters of this standard. Chengming Kun, Tian Jing, Li Zhiyuan, Chang Jung beginning, Mao Dongxing, Qiu Xiaojun, Zhang Bangjun, Di Guoqing, Geng Xiao tone.
GB/T 3241-1998 octave and fractional octave filters (eqv IEC 61260.1995)
Standard sound source performance and calibration requirements (GB/T 4129-2003 GB/T 4129 Acoustics for sound power level measured,
ISO 6926.1999, IDT)
GB/T 14573.1 determining and verifying equipment statistical method prescribed noise emission values \u200b\u200bPart I. Overview and
Define (GB/T 14573.1-1993, neq ISO 7574-1. 1985)
GB/T 15173-1994 electric acoustic sound calibrators (eqv IEC 942. 1988)
IEC 61672-1.2002 electric acoustic sound level meters - Part 1. Specification
3 Terms and Definitions
This standard uses the following terms and definitions.
3.1
RSS
Meet GB/T 4129 and calibrate accordingly calibrated, stationary source emission constant broadband noise has sufficient sound power level.
3.2
Clearly defined with respect to the reflecting surface, for the standard calibration sound source position.
GB/T 16538-2008/ISO 3747.2000
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