This standard specifies the facility conditions and measuring instruments, sample installation and debugging, sound pressure level measurement, result calculation, measurement uncertainty and testing report. This standard applies to toilet flushing noise detection (excluding toilets and smart toilets using pressure flushing devices).
GB/T 26730 Sanitary ware - Gravity water flushing devices and supports
GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane
ISO 3744 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane