To treat your timber properly, you need titration equipment and to maintain it properly.
Without this maintenance, your equipment will give inaccurate readings and, as a result, your wood will be either under- or over-treated. Under-treatment results in wood that fails early. Over-treatment is a waste of money, as too much chemical is used.
“Think of your titration equipment in the same way as your car: every time you use it there is a little wear and tear, so services are crucial to keep it working well over time,” says Navi Moodley, Dolphin Bay’s Chemical Lab Manager.
There are three methods of determining the solution strength of your chemical: the Securus AT unit, wet titration and the XRF machine. Dolphin Bay introduced Securus to the industry because it gives more accurate and consistent results than wet titration as it works electronically, eliminating the inevitable errors of human judgement. In addition, Securus costs about one-third the price of an XRF machine and is simpler to use and much cheaper to maintain, while giving as-accurate results.
To find out if your equipment needs calibrating, cross-reference it with another method. Dolphin Bay staff can help you to do this, using our standardised samples of CCA. These have been tested in an independent laboratory on an AA spectrometer, which is one of the most accurate methods available for determining the elements in a material, and is widely used internationally.
For servicing, the XRF machine must be sent back to the manufacturer in the UK, where experts can calibrate the machine. “This is expensive equipment so before you buy it, make sure that a service agreement is in place,” advises Bertus.
Dolphin Bay calibrates Securus on site, at no extra cost to customers who have bought the unit, using our standardised samples of CCA.
“Dolphin Bay introduced Securus after researching all the possibilities thoroughly, determining what really would work best and would prove most cost-effective for our clients over time,” says Bertus. “We recommended Securus not for commercial reasons, but because we are convinced it is the best option available.
“Nevertheless, we accept all three methods, and are committed to helping clients use whichever method they may choose in the best possible way, for the best possible results.”