Lovibond Maxi Direct - Page 166

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MaxiDirect_2c 03/2010
1.1 Methods
Table 1:
Expected range
(mg/L Phosphonate)
Sample volume
in ml
Factor
0 – 2.5 50 0.1
0 – 5.0 25 0.2
0 – 12.5 10 0.5
0 – 25 5 1.0
0 – 125 1 5.0
Table 2:
Phosphonate type Conversion factor
for active phosphonate
PBTC 2.840
NTP 1.050
HEDPA 1.085
EDTMPA 1.148
HMDTMPA 1.295
DETPMPA 1.207
HPA 1.490