Nach / After / Après ZERO (p. 10)
Wasserstoffperox. • Hyd. Peroxide
Acidifying
3
3
pH
tCl
fCl
Hyd. Peroxide
5
HR
Photometer*
tCl
7
• Perox. d'Hydrogène
PT*
ZERO
TA
CYA
pH
ZERO
TA
fCl
CYA
pH
ZERO
TA
tCl
fCl
CYA
4
pH
ZERO
tCl
fCl
CYA
6
pH
tCl
fCl
!
pH
ZERO
tCl
fCl
completely
dissolved
TA
NO
residue
completely
dissolved
ZERO
TA
NO
residue
CYA
TA
CYA
43