400-604-8982
second, the air sound insulation room design standards and specifications
1. gb/t 6882-2016 "measurement of sound power level of acoustic noise sources", precision method of anechoic chamber and semi-anechoic chamber;
2. iso3745: 2012 acoustics-determination of sound power levels of noise sources using sound pressure-precision methods for anechoic and hemi-anechoic rooms, namely iso 3745 "acoustics-determination of sound power level of noise sources-precision measurement method of anechoic room and semi-anechoic room";
3. jjf 1147 specification for calibration ofacoustic characteristics ofanechoic rooms and semi-anechoic rooms;
4. gb/t 18883-2002 indoor air quality standard;
5. gbt4214.1-2000 noise test methods for household appliances and similar appliances part 1;
6. gbj118-88 code for design of sound insulation of civil buildings;
7. gb3096-2008 sound environment quality standard;
8. gbt 19889.3-2005 acoustics-measurement of sound insulation of buildings and building components-part 3: laboratory measurement of air sound insulation of building components;
9. gbt 19889.2-2005 acoustics-measurement of sound insulation of buildings and building components-part 2: determination, verification and application of data precision;
10. gbt 19889.1-2005 acoustics-measurement of sound insulation of buildings and building components-part 1: requirements for laboratory test failities with suppressed lateral sound transmission