Laboratory Comparator System to Compensate the Intrinsic Colour of the Water

For a regular monitoring of your pond water JBL offers a series of test kits. With most of the tests, a reagent is added to change the colour of the water. JBL tests have a special feature to make the reading easier and extremely accurate: Instead of only comparing the colour change of the water on a colour scale, a second measuring vial with the pond water is also put on the colour chart. This water then appears to have (optically) changed its colour, which makes it easier to compare it very accurately with the water colour of the other measuring glass vial. This system of comparison is called comparator system. It compensates natural water discoloration.

Use the enclosed syringe to fill each of the test containers with sample water.

Add the reagent to one of the test containers.

Move the comparator block with the two test containers backwards and forwards on the colour chart with the notch pointing to the values, until the colour of the sample treated with reagent matches the colour under the blank sample as closely as possible.

© 10.06.2017
Heiko Blessin
Heiko Blessin
Dipl.-Biologe

Tauchen, Fotografie, Aquaristik, Haie, Motorrad

Comments

A word about cookies before we continue

The JBL Homepage also uses several types of cookies to provide you with full functionality and many services: We require technical and functional cookies to ensure that everything works when you visit this website. We also use cookies for marketing purposes. This ensures that we recognise you when you visit our extensive site again, that we can measure the success of our campaigns and that the personalisation cookies allow us to address you individually and directly, adapted to your needs - even outside our website. You can determine at any time - even at a later date - which cookies you allow and which you do not allow (more on this under "Change settings").

Are you over 16 years old? Then confirm the use of all cookies with "Noticed" and you are ready to go.

Choose your cookie settings

Technical and functional cookies, so that everything works when you visit our website.
Marketing cookies, so that we recognize you on our pages and can measure the success of our campaigns.