- Faster checkout
- Save multiple shipping addresses
- View and track orders and more
Customer Login
New Customer
Palintest Photometer DPD 1 XF Test Tablets Tablets
- Palintest DPD 1 XF
- Photometer Tablets
- Palintest Code: AP013XF
| Qty | Ex.VAT | Saving |
| 1-5 | £19.38 | - |
| 5+ |
£18.56
for 250 Tabs
£23.25 Inc. VAT
| 4% |
| Kleanz-All Probably the only cleaner required and one of the most powerful and versatile cleaners available, Kleanz-All will clean almost any washable surface leaving it streak free and with a fresh, clean fragrance. View More ... |
Palintest Photometer DPD 1 XF Test Tablets
Palintest DPD High Range Photometer Tablets - Test tablets for photometers.
DPD1 - To Test Free Chlorine Levels
AP013 DPD1-XF (HR) Tablets x 250 - High Range 0-10ppm Free Chlorine Levels - Only to be used with High Range Photometers.
DPD3 - To Test Combined levels
AP033/1 DPD3-XT (HR) Tablets x 250 - High Range 0-10ppm Combined Levels - Only to be used with High Range Photometers.
This Palintest Chlorine/10 test uses the DPD method developed by Dr A T Palin and now internationally recognised as the standard method of testing for chlorine and other disinfectant residuals. In the Palintest DPD method, the reagents are provided in tablet form for maximum convenience and simplicity of use.
Free chlorine reacts with diethyl-p-phenylene diamine (DPD) in buffered solution to produce a pink coloration. The intensity of the colour is proportional to the free chlorine concentration.
Subsequent addition of excess potassium iodide induces a further reaction with any combined chlorine present. The colour intensity is now proportional to the total chlorine concentration; the increase in intensity represents the combined chlorine concentration. In this way, it is possible to differentiate between free and combined chlorine present in the sample. The colour intensities are measured using a Palintest Photometer.
The DPD Oxystop tablet is added after measurement for free chlorine but before the DPD XT tablet. It prevents the reaction between shock treatment chemicals and potassium iodide which would give a positive response.
Product Haggle
All images used are for illustrative purposes and are not intended to be relied upon for, nor to form part of, any contract unless specifically incorporated in writing into the contract.
We reserves the right to change product images at any time without notice.
Would you like to tell us about a lower price? New customer? Start here.