All Germs
Germs

Bacillus subtilis

UV doses per log reduction

6531305195826104351D90 · 90 %8702D99 · 99 %13053D99.917404DVGW 4-log2175599.999 %2610699.9999 %mJ/cm²LOG-REDUKTIONS-STUFE

Medium & classification

Water
Bacterial spores
Test wavelength 172 nm

UV resistance

Very resistant

1740 mJ/cm² are needed for 4-log reduction — classification for system sizing.