Division 6 Calculation of results
United Kingdom
The amount of chlorine (X), expressed as % sodium chloride is calculated by using the following formula:
where:
V1 V2 m
ml of silver nitrate solution 0,1 mol/l added
ml of ammonium thiocyanate solution 0,1 mol/l used for titration
weight of sample.
If the blank test indicates that silver nitrate solution 0,1 mol/l has been consumed deduct this value from the volume (V1 – V2).