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Position: Chinese Standard in English/GB/T 50121-2005
GB/T 50121-2005   Rating standard of sound insulation in buildings (English Version)
Standard No.: GB/T 50121-2005 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 8000 words Price(USD):200.0 remind me the price change

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Implemented on:2005-10-1 Delivery: via email in 1 business day
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Standard No.: GB/T 50121-2005
English Name: Rating standard of sound insulation in buildings
Chinese Name: 建筑隔声评价标准
Chinese Classification: P31    Architectural physics
Professional Classification: GB    National Standard
ICS Classification: 91.120.20 91.120.20    Acoustics in building. Sound insulation 91.120.20
Issued by: Ministry of Construction
Issued on: 2005-07-15
Implemented on: 2005-10-1
Status: valid
Superseding:GBJ 121-1988
Language: English
File Format: PDF
Word Count: 8000 words
Price(USD): 200.0
Delivery: via email in 1 business day
1 General Principles 1.0.1 This Standard was formulated with a view to evaluating the sound insulation performance of buildings and building elements and reasonably determining the levels of sound insulation performance. 1.0.2 This Standard is applicable to the single-number evaluation and performance grading of air-borne sound insulation and impact sound insulation of buildings and building elements. 1.0.3 For the evaluation carried out according to the air-borne sound insulation and impact sound insulation of buildings and building elements of this Standard, the measuring method by using raw data shall be implemented in accordance with current national measurement of sound insulation standard. 1.0.4 The evaluation of sound insulation shall comply with not only this Standard, but also meet the requirements of other relevant current national standard and specifications. 2 Terms and Symbols 2.0.1 Measurement quantity A group of measured air-borne sound insulation or impact sound insulation data of 1/3 octave or octave, dB. 2.0.2 Weighting The method of obtaining the single-number after the integration of a group of measuring quantity by a group of reference values. 2.0.3 Single-number quantity The single-number worked out after the weighting of measuring quantity according to the method specified in this Standard, dB. 2.0.4 Reference values A group of reference values of weighting of measuring quantity in determining single-number quantity, dB. 2.0.5 Air-borne sound Air borne noise in the process of construction. 2.0.6 Impact sound Noise caused by impacting on building structures. 2.0.7 Unfavorable deviation The decibel of sum of reference value and single-number quantity of measuring amount of some frequency band lower than (air-borne sound insulation) or larger than (impact sound insulation) those of this frequency band, dB. 2.0.8 Spectrum adaptation term for air-borne sound insulation The adaptation value to be added to the single-number quantity in consideration of noise spectrum characteristics, dB.
1 General Principles 2 Terms and Symbols 3 Air-borne Sound Insulation 3.1 Single-number Quantity of Air-borne Sound Insulation and Spectrum Adaptation Term 3.2 Numerical Method of Determining the Single-number Quantity of Air-borne Sound Insulation 3.3 Curve Comparison Method of Determining Single-number Quantity of Air-borne Sound Insulation 3.4 Calculation Method of Spectrum Adaptation Term 3.5 Presentation of Test Result 4 Impact Sound Insulation 4.1 Single-number Quantity of Impact Sound Insulation 4.2 Numerical Method of Determining the Single-number Quantity of Impact Sound Insulation 4.3 Comparison Method of Curve of Determining the Single-number Quantity of Impact Sound Insulation 4.4 Single-number Quantity of Impact Sound Improving Quantity 4.5 Presentation of Test Result 5 Evaluation Grading of Building Elements and Buildings Sound Insulation Performance 5.1 Air-borne Sound Insulation Performance Grading 5.2 Grading of Impact Sound Insulation Performance Appendix A Use of Spectrum Adaptation Term of Air-borne Sound Insulation Appendix B Spectrum Adaptation Term of Expanded Frequency Span of Air-borne Sound Insulation Appendix C Calculation of Spectrum Adaptation Term of Impact Sound Insulation C.1 Spectrum Adaptation Term of Impact Sound Insulation C.2 Spectrum Adaptation Term of Impact Sound Improving Quantity of Floor Slab Surface Layer Appendix D Calculation Method of Weighted Normalized Impact Sound Pressure Level after the Laying of Surface Layer on the Smooth-bare Heavy Floor Slab Explanation of Wording in this Standard
GB/T 50121-2005 is referred in:
* GB/T 8485-2008 The graduation and test for airborne sound insulating properties of windows and doors
* GB 50209-2010 Code for Acceptance of Construction Quality of Building Ground
* GB 50118-2010 Code for sound insulation design of civil buildings
* GB/T 19889.3-2005 Accoustics—Measurement of sound insulation in buildings and of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements
Code of China
Standard
GB/T 50121-2005  Rating standard of sound insulation in buildings (English Version)
Standard No.GB/T 50121-2005
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8000 words
Price(USD)200.0
Implemented on2005-10-1
Deliveryvia email in 1 business day
Detail of GB/T 50121-2005
Standard No.
GB/T 50121-2005
English Name
Rating standard of sound insulation in buildings
Chinese Name
建筑隔声评价标准
Chinese Classification
P31
Professional Classification
GB
ICS Classification
Issued by
Ministry of Construction
Issued on
2005-07-15
Implemented on
2005-10-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GBJ 121-1988
Language
English
File Format
PDF
Word Count
8000 words
Price(USD)
200.0
Keywords
GB/T 50121-2005, GB 50121-2005, GBT 50121-2005, GB/T50121-2005, GB/T 50121, GB/T50121, GB50121-2005, GB 50121, GB50121, GBT50121-2005, GBT 50121, GBT50121
Introduction of GB/T 50121-2005
1 General Principles 1.0.1 This Standard was formulated with a view to evaluating the sound insulation performance of buildings and building elements and reasonably determining the levels of sound insulation performance. 1.0.2 This Standard is applicable to the single-number evaluation and performance grading of air-borne sound insulation and impact sound insulation of buildings and building elements. 1.0.3 For the evaluation carried out according to the air-borne sound insulation and impact sound insulation of buildings and building elements of this Standard, the measuring method by using raw data shall be implemented in accordance with current national measurement of sound insulation standard. 1.0.4 The evaluation of sound insulation shall comply with not only this Standard, but also meet the requirements of other relevant current national standard and specifications. 2 Terms and Symbols 2.0.1 Measurement quantity A group of measured air-borne sound insulation or impact sound insulation data of 1/3 octave or octave, dB. 2.0.2 Weighting The method of obtaining the single-number after the integration of a group of measuring quantity by a group of reference values. 2.0.3 Single-number quantity The single-number worked out after the weighting of measuring quantity according to the method specified in this Standard, dB. 2.0.4 Reference values A group of reference values of weighting of measuring quantity in determining single-number quantity, dB. 2.0.5 Air-borne sound Air borne noise in the process of construction. 2.0.6 Impact sound Noise caused by impacting on building structures. 2.0.7 Unfavorable deviation The decibel of sum of reference value and single-number quantity of measuring amount of some frequency band lower than (air-borne sound insulation) or larger than (impact sound insulation) those of this frequency band, dB. 2.0.8 Spectrum adaptation term for air-borne sound insulation The adaptation value to be added to the single-number quantity in consideration of noise spectrum characteristics, dB.
Contents of GB/T 50121-2005
1 General Principles 2 Terms and Symbols 3 Air-borne Sound Insulation 3.1 Single-number Quantity of Air-borne Sound Insulation and Spectrum Adaptation Term 3.2 Numerical Method of Determining the Single-number Quantity of Air-borne Sound Insulation 3.3 Curve Comparison Method of Determining Single-number Quantity of Air-borne Sound Insulation 3.4 Calculation Method of Spectrum Adaptation Term 3.5 Presentation of Test Result 4 Impact Sound Insulation 4.1 Single-number Quantity of Impact Sound Insulation 4.2 Numerical Method of Determining the Single-number Quantity of Impact Sound Insulation 4.3 Comparison Method of Curve of Determining the Single-number Quantity of Impact Sound Insulation 4.4 Single-number Quantity of Impact Sound Improving Quantity 4.5 Presentation of Test Result 5 Evaluation Grading of Building Elements and Buildings Sound Insulation Performance 5.1 Air-borne Sound Insulation Performance Grading 5.2 Grading of Impact Sound Insulation Performance Appendix A Use of Spectrum Adaptation Term of Air-borne Sound Insulation Appendix B Spectrum Adaptation Term of Expanded Frequency Span of Air-borne Sound Insulation Appendix C Calculation of Spectrum Adaptation Term of Impact Sound Insulation C.1 Spectrum Adaptation Term of Impact Sound Insulation C.2 Spectrum Adaptation Term of Impact Sound Improving Quantity of Floor Slab Surface Layer Appendix D Calculation Method of Weighted Normalized Impact Sound Pressure Level after the Laying of Surface Layer on the Smooth-bare Heavy Floor Slab Explanation of Wording in this Standard
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Keywords:
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