After | Après | Después de | Nach | Dopo ZERO (p. 10)
Active Oxygen | Oxygène actif | Oxígeno activo
Aktivsauerstoff | Ossigeno Attivo
DPD
N° 4
3
4
Photometer*
completely
dissolved
pH
ZERO
TA
pH
ZERO
TA
tCl
tCl
NO
residue
fCl
fCl
5
!
pH
ZERO
TA
pH
ZERO
TA
tCl
tCl
fCl
fCl
25
