Lovibond Maxi Direct - Page 33

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MaxiDirect_2c 03/2010
1.1 Methods
Notes:
1. The tablets must added in the correct sequence.
2. The sample solution should have a pH value between 6 and 7.
3. Interferences are prevented by the presence of EDTA in the tablets.
4. The rate of colour development depends on the temperature. The temperature of the
sample must be 20°C ± 1°C.
5.
B
H
3
BO
3