All Germs
Germs

Bacillus subtilis

UV doses per log reduction

1632496510.81D90 · 90 %21.62D99 · 99 %32.43D99.943.24DVGW 4-log54599.999 %64.8699.9999 %mJ/cm²LOG-REDUKTIONS-STUFE

Medium & classification

Water
Bacterial spores
Test wavelength 222 nm

UV resistance

Moderate

43.2 mJ/cm² are needed for 4-log reduction — classification for system sizing.