Palin-test2

Palintest DPD3 Comparator

£17.16 (£14.30 Ex. VAT)

In Stock

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Product Description

Test Procedure 1 Rinse a square test tube with sample leaving two or three drops of sample in the tube. 2 Add one DPD No 1 tablet, crush tablet and then fill the test tube with sample to the 10 ml mark. Mix to dissolve tablet. 3 Place the test tube in the Comparator and match immediately against disc in the usual manner (see Comparator instructions). 4 The disc reading represents the free chlorine residual as mg/l CI2 (Result A). 5 To measure monochloramine, continue the test on the same test portion. Add one DPD No 2 tablet, crush and mix to dissolve. 6 Place the test tube in the Comparator and match against the disc in the usual manner (Result B) then :- Monochloramine (mg/l CI2) = Result B – Result A 7 To measure dichloramine, continue the test on the same test portion. Add one DPD No 3 tablet, crush and mix to dissolve. 8 Allow to stand for two minutes for maximum colour development. 9 Place the test tube in the Comparator and match against the disc in the usual manner

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