Palintest Colour / Turbidity - For Photometer (50 Tablets)
TEST FOR COLOUR IN NATURAL AND TREATED WATERS
PHOT.47.AUTO Photometer Method
Test Range:
10 – 500 mg/l Pt
(10 – 500 mg/l Hazen Units)
TEST INSTRUCTIONS
AUTOMATIC WAVELENGTH SELECTION
Pure water exhibits a light blue colour when viewed in depth. This colour may be modified by the presence of organic material, typically to a yellow or brown colour. An estimate of this colour intensity is used as a simple means of monitoring natural and treated water.
Method
The colour of the water is determined photoelectrically using the Palintest Photometer. The sample should be filtered to remove suspended solids before analysis to determine the 'true colour' due to dissolved matter.
The colour of water is expressed using the platinum/cobalt colour scale (Pt/Co scale). Each unit is equivalent to the colour produced by 1 mg/l platinum in the form of chloroplatinic acid in the presence of 2 mg/l cobaltous chloride hexahydrate. These units are identical with 'Hazen' units, which have been traditionally used to express results from the visual estimation of water colour.
Reagents and Equipment
Palintest Colour/Turbidity Set (PM 269)
Palintest Automatic Wavelength Selection Photometer
Test Procedure
1 Filter sample through a GF/B filter paper.
2 Fill a test tube with filtered sample to the 10 ml mark.
3 Fill a test tube with deionised water to the 10 ml mark and retain for use as the BLANK tube.
4 Select Phot 47 on photometer.
5 Take photometer reading in usual manner (see photometer instructions) using the deionised water as the blank.
6 The result is displayed as mg/l Pt.
Note
Samples, which contain metallic impurities, dyestuffs or other industrial pollutants, may exhibit a different colour to the natural yellow-brown coloration. This test may not be suitable for samples of this type.
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.