Drop Count Kits

Dropper titration provides a cost effective and accurate means of determining water quality in the field, for a wide range of applications.

Straight-forward test method
A simple test method, calculating concentration based on the number of drops used until a colour change occurs.

Build a bespoke kit
Individual test kits can be combined to build a portable, bespoke kit.

Enquire Now

Visual Testing

Fast Results

Colourimetric

Drop Count Kits Reagents

View Reagents

Drop Count Kits Accessories

View Accessories

Alkalinity

0 - 1200+ mg/L (M and P) *low range options available

Calcium Hardness

0 - 1200+ mg/L

Chloride

0 - 600+ mg/L *low range options available

Hardness

0 - 600+ mg/L *low range options available

Nitrite

0 - 1500+ mg/L

Sulfite

0 - 600+ mg/L *low range options available

Tannin

0 - 300+ mg/L

Technical Support

To find out more information and to contact our support team, visit our technical support page.

Frequently Asked Questions

Read our FAQs for more information about your product and application.

Click here for more FAQs

How do you use a Tablet or Drop Count Visual Test?

Liquid drops or tablets are added to the sample and counted until a colour change occurs in the sample. When this happens the number of tablets or drops used is multiplied by a factor to give a concentration.

My drop count says each drop is equivalent of 40mg/L. However, the instructions say “multiply number of drops by 40 then subtract 20”. Why do I subtract the 20?

If you imagine colour change taking place after 6 drops, you would multiply by 40 to give 240 mg/L. However, 5 drops would have been equivalent to 200 mg/L. So, the ‘true’ level is anywhere between 200 and 240. By subtracting 20 from the higher figure you get a result of 220 which will be within 20 mg/L of wherever the ‘true’ figure is.

Which is best a Photometric or Visual Test Method?

The reasons for carrying out a test, the situation and the application all effect the choice of what test method is best for you.

For example, whilst accuracy and repeatability might be the most important factors in a modern laboratory. Weight, speed of test, and the lack of requirement for electricity might be more important in a field expedition.