All Germs
Germs

Bacillus subtilis

UV doses per log reduction

1224364881D90 · 90 %162D99 · 99 %243D99.9324DVGW 4-log40599.999 %48699.9999 %mJ/cm²LOG-REDUKTIONS-STUFE

Medium & classification

Water
Bacterial spores

UV resistance

Moderate

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