3.4
Abbreviations
degree Celsius (Centigrade)
degree Fahrenheit °F = (°C x 1.8) + 32
Absorption unit (
=
^
Extinction E)
1000 mAbs = 1 Abs
=
^
1 A
=
^
1 E
(= ppb) Microgram per litre
(= ppm) Milligram per litre
Acid demand to pH 4.3 – this method is similar to Total Alkalinity but
converted into the unit “mmol/l”,
as the German DIN 38409 demand.
Reagents from Chemetrics
©
Diethyl-p-phenylendiamine
1-(2-Pyridylazo)-2-napthol
Paradimethylaminobenzaldehyde
3-(2-Pyridyl)-5,6-bis(4-phenylsulfonic acid)1,2,4-triazine
2,4,6-Tri-(2-Pyridyl)-1,3,5-triazine