Colorimetric test kits

Match the method to the decision you have to make. Test strips give a quick yes/no or range indication in seconds, such as chlorine indicator strips, 0–5 mg/l; more are in test strips and indicator papers. Colorimetric kits, with a colour comparator or drop titration, give a clearer value without an instrument. When you need quantitative results for a report, use photometric tests with a photometer from cuvette tests. Unsure which level of accuracy your control plan needs? Ask sales@luminixhealth.com.

First choose the parameter, such as chlorine, nitrate, phosphate, hardness or iron, then a range that includes the value you expect, ideally in its middle. A reading at the very top of a range is less reliable, so a sample above it needs dilution or another kit. The range is in each product title, for example nitrate indicator strips, 0–500 mg/l. If you check several parameters, a combination set saves time; see test kits and water analysis. Unsure which range fits your samples? Ask sales@luminixhealth.com.

The number of strips or determinations is in the product title, such as the swimming pool test, 50 strips; compare it with how often you test so the kit is used before it expires. Keep reagents and strips dry, dark and closed, put the cap back straight after use, and respect the expiry date on the pack. Strips are sensitive to moisture, so a dry cabinet from desiccators and desiccant helps in humid rooms. Where refill packs exist, the product page lists them. Need a larger quantity? Ask sales@luminixhealth.com.

The product page states the matrix the test is made for, such as swimming pool, drinking, process or waste water. Use a test within that matrix: a kit for clear drinking water may give wrong readings in waste water. Turbid or coloured samples can disturb the colour reading, so filter or dilute them where the instructions allow. For general water quality, for example hardness, see water hardness indicator strips, 0–500 mg/l and the wider range in test kits and water analysis. Unsure about your sample type? Ask sales@luminixhealth.com.

A colorimetric kit develops a colour whose intensity tracks concentration. Comparing by eye against a chart and reading a photometer are different versions. The range, the sample volume and the interfering substances named in the leaflet are the specification.

A test kit turns a chemical question into a colour, a titre or a reading on a strip, so the operator does not have to assemble the method from separate reagents. A cuvette test is a ready optical cell. A strip is a field reading. The range printed on the kit is the range where the answer means something. Outside it, the kit is silent or wrong. The substances inside are on PubChem. Water measurement traces to NIST.

This shelf belongs to Test kits & water analysis, inside Lab chemicals. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Cuvette tests (Nanocolor), Test inks & surface tension and Test strips & indicator papers. The category above this shelf is Test kits & water analysis.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU, usually within 2 to 5 working days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

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