YI-01 conforms the rubber ball impact source defined in ISO 10140-3: 2010 and JIS A 148-2: 2019.
This is used when the impact force of a standard impact source (bang machine) with impact force properties (1) is excessive for a building with a lightweight structure.
Easy to carry, weighing just 2.5 kg. A consistent impact force is achieved by free-dropping from a height of 1 m.
|Octave band center frequency Hz||Octave band impact force exposure levels dB||Tolerances dB|
|Major rubber compound||Silicone rubber|
|Shape||Hollow sphere with diameter of approx. 178 mm and wall thickness of 32 mm|
|Equivalent mass||2.5 kg ± 0.1 kg|
|Rebound coefficient||0.8 ± 0.1|
|Hardness of rubber||40 °± 5 °|