Pipette 4.0 ml of the
sample into a reaction
cell, close with the screw
cap, and mix.
Reaction time:
10 minutes, measure
immediately.
114683
Cell Test
Residual Hardness
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Add 0.20 ml of RH-1K
,
close the cell with the
screw cap, and mix.
Measuring 0.50 – 5.00 mg/l Ca
range: 0.070 – 0.700 °d
0.087 – 0.874 °e
0.12 – 1.25 °f
Measuring 0.70 – 7.00 mg/l CaO
range: 1.2 – 12.5 mg/l CaCO
3
Expression of results also possible in mmol/l.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) ready-f
or-use
calcium standard solution
Certipur
®
, Cat.No. 119778,
concentration 1000 mg/l Ca, can be used after
diluting accordingly. (Pay attention to pH value!)
Check the pH of the
sample, specified range
:
pH 5– 8.
If required, add dilute
sodium hydroxide
solution or hydrochloric
acid drop by drop to
adjust the pH.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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