61 
IS^ASEOUS DISINFECTION— 
A. Formaldehvd: 
' ((. Chemintry and jdiy^ics. 
i i h. Sheet nietliod. 
c. Generator — 
• 1. Kuhn lamp. 
' (/. Regenerators without pressure — 
1. Trenner-Lee. 
2. Lentz. 
e. Regenerators with pressure — 
i 1. Autoclave. 
/. Heating paraform. 
! g. Spraying. 
1>. Sulphur dioxid (SOg) : 
a. Liquid sulphur dioxid. 
h. Burning sulphur, pot method. 
I c. Sulphur furnace. 
' C. Hydrocyanic acid gas. 
D. Chlorin gas. 
I 
; PI. Ozone and oxygen. 
■ 
i 
V 
