msa190-10
2010-12
page 5
• DPD reacts with both chlorine and bromine. However, it is possible to determine bromine in the presence of chlorine, and to separate between bromine
and chlorine residuals using a DPD methodology. For instructions on how to do this, please contact BAMO Mesures SAS.
Reagents
AP 011 - DPD No 1 Tablets
pH
Range: 6.5 to 8.4
Wavelength: 575 nm
Method – Phenol Red
1 Fill test tube with sample to the 10 mL mark.
2 Add one PHENOL RED tablet, crush and mix to dissolve.
3 Take the photometer reading.
Reagents:
AP 130 - Phenol Red Tablets
Cyanuric Acid
Range: 2 to 200 mg/L
Wavelength 530 and 575 nm
Method – Turbidity
1 Fill test tube with sample to the 10 mL mark.
2 Add one Cyanuric Acid tablet and allow to disintegrate for at least two minutes.
3 A cloudy solution indicates the presence of cyanuric acid.
4 Crush any remaining undissolved tablet and mix to ensure uniformity.
5 Take the photometer reading.
Reagents:
AP 087 – Cyanuric Acid Tablets
