All Germs
Germs

Bacillus subtilis

UV doses per log reduction

2448729716.11D90 · 90 %32.22D99 · 99 %48.33D99.964.44DVGW 4-log80.5599.999 %96.6699.9999 %mJ/cm²LOG-REDUKTIONS-STUFE

Medium & classification

Water
Bacterial spores

UV resistance

Moderate

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