Lovibond® Water Testing Tintometer® Group

Hardness

Hardness
The hardness of water is a measure of its soap-consuming capacity; in practice it corresponds to the calcium and magnesium salts. Boilers usually require feed water of low hardness not only to avoid scale formation on heat transfer surfaces but also to minimise the formation of suspended solids or sludge in the boilers.
Hardness salts are not normally removed from potable water where, in the UK, their concentration can vary dramatically depending on the type of rock strata/run-off surface the water comes into contact with.

References:

Minikits/Titration
MiniKit Type Range Method

56A006801 DIGI Titrator 10-2000mg/l

56K006801 Drop Test 50-600mg/l

56K006901 Drop Test 4mg/l

56K007001 Drop Test 9-540mg/l

56K007201 Drop Test 8-20mg/l
Comparator 2000+ Discs
Disc Code Description Disc Readings Range

231070 4/38 0, 5, 10, 15, 20, 25, 30, 40, 60 mg/l CaCO3
 
Photometers
Photometer Code Type Wave length Range
210070 Multi Direct 2-50 mg/l; 20-500 mg/l
214025 MD 610 2-50 mg/l; 20-500 mg/l
214140 2-50 mg/l; 20-500 mg/l
 
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