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SPN FEB 2011 WaterTesting
www.swimmingpoolnews.co.uk
“While the DPD method has proven its reliability, as a reagent it is inherently unstable. Different ways of packaging the reagent have been developed to try to overcome this instability”
agricultural and education industries says the pool industry is very important to its business. “The La Motte products have always had a fantastic reputation. And about 10 to 12 years ago they tried to establish the products in Europe but for some reason it just didn’t work. We’ve now been able to establish the right sort of relationships and availability to make the products work here.” The unique, multi-test ColorQ hand-held photometer measures test factors directly on a digital display. Featuring an innovative dual- optic design, the ColorQ provides more accuracy and more test factors. The ColorQ eliminates the need to visually determine slight colour variations or the use of look- up tables, which takes the guesswork out of pool-side water analysis.
The multi-test ColorQ kits from La Motte via Sword Scientific
A colorimetric test is often referred to as a photometer or colorimeter. Either way, the basic technology is the measurement of light intensity at defined wavelengths as it passes through a reacted sample. A calculation based on a set calibration curve allows the measured value to be converted to appropriate value of the measured parameter. This technology continues to improve as reagent technology gets better. As great as these systems can be, they are reliant on the reagents (liquid, tablets or powder pillows) for getting accurate measurement. Therefore, as reagents are improved and use life is extended, colorimeters become more accurate and reliable. While the DPD method has proven its reliability, as a reagent it is inherently unstable. Different ways of packaging the reagent have been developed to try to overcome this instability.
The advantage of tablet reagents has been long acknowledged in the UK. Shelf life is up to
10 years, and the foil packaging ensures that the reagent stays fresh until opened by the user. A tablet also ensures the right amount of the reagent is added to the water sample.
Industrial Test Systems (ITS) has a new photometer using a patented method and technologies which it claims offers faster, safer, easier, and more precise water testing. The eXact Micro 7+ has seven modes which provide results for total alkalinity, bromine, calcium hardness, free chlorine, total chlorine, copper, ozone, permanganate and pH. ITS is the international division of Industrial Test Systems, a leading manufacturer of instruments designed to test water quality parameters.
The eXact Micro 7+ is ideal for residential, commercial, and municipal testing. One of its claims is that it is environmental friendly using fewer chemicals than the ordinary 10 ml test. It comes with a 2-year warranty, automatic built-in timer for streamlined testing, and 140 test memory while fitting comfortably in your hand. Pool-i.d. has been marketing water testing products for nearly a decade. The “rap-i.d. press&break” was the company’s first product which is exclusively manufactured and distributed by them. A range of pool testing equipment followed on and has been developed to include more basic Test Strips and Pooltesters.
The innovative and award winning “press&break” is a small one-way pool tester which only takes eight seconds and can be done very easily. Test strips are enjoying greater popularity, as they provide a simple and fast method for quick analysis and the Pool-i.d. strips are one of the most popular on the market. The range of testing equipment includes comparator kits and electronic meters. spn
eXact Micro from ITS
i FOR FURTHER INFORMATION
F GOLDEN COAST ( 01271 378100 :
www.goldenc.com F HANNA INSTRUMENTS ( 01525 850855 :
www.hannainst.co.uk F ITS EUROPE ( 01722 717911 :
www.sensafe.com F PALINTEST ( 0191 491 0808 :
www.palintest.com F POOL-I.D. UK ( 01722 322566 :
www.pool-id.com F SWORD SCIENTIFIC LTD (LAMOTTE) ( 01926 336663 :
www.sword-scientific.com F TINTOMETER LIMITED ( 01980 664800 :
www.tintometer.com
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