Lovibond Maxi Direct - Page 95

93
MaxiDirect_2c 03/2010
1.1 Methods
Notes:
1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10
before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide).
2. Conversion table:
mg/l CaCO
3
°dH °fH °eH
1 mg/l CaCO
3
---- 0.056 0.10 0.07
1 °dH 17.8 ---- 1.78 1.25
1 °fH 10.0 0.56 ---- 0.70
1 °eH 14.3 0.80 1.43 ----
3.
CaCO
3
°dH
°eH
°fH
°aH