The level of dissolved oxygen in natural waters is often a direct indication of quality, since aquatic plants produce oxygen, while microorganisms generally consume it as they feed on pollutants. At low temperatures the solubility of oxygen is increased; during summer, saturation levels can be as…

A method for measuring the color of potable water in terms of an easily reproducible color standard is essential to water engineers responsible for the distribution of supplies for public consumption. Color determinations are useful for detecting any irregular contamination of the supply due…

Protects water baths and other water systems against the growth of algae, bacteria, molds and biofilms. Just 2ml per liter of water adds a blue tint which will fade after about 3 months reminding you to change the water and add new conditioner. Protects pumps and thermostats and helps…

PrePak 1 Pretreatment Pack

DPD Powder Pop® Dispenser with tests for Chlorine Compact and convenient Redesigned dispenser prevents clogging Dispense into round or square cuvettes Push button operation for precise dosing Portable dispensers accurately deliver the correct volume of DPD reagent for…

Normally found in water and soil as ammonia (NH₃), nitrate (NO₃), and nitrite (NO₂), nitrogen is an indispensable part of the life cycle. However, concentrations above certain levels can present problems. Thomas No. 3241S80 Utilizing the simple color…

Tube test for the determination of COD. Precise rapid tests for all kind of water and waste water samples according to ISO 15705. Time-saving and reliable analysis together with Macherey-Nagel NANOCOLOR photometers. Measuring range: COD - 5–60 mg/L O2

UN Number: UN3316

UN Number: UN3316

VISOCOLOR Powder Pillows Iron reagent set for photometric determination of Iron. Ideal for drinking water and waste water analysis. Measuring range: 0.03 - 3.00 mg/L Fe

The Insta-Test Low Range Hydrogen Peroxide Test Strips is a convenient way to quickly measure peroxide levels in water with fast dip and read results. Range and sensitivity is 0, 1, 3, 10, 30, 50 ppm.   Applications: Drinking Water, Industrial Water Boiling and Cooling, Laundry…

Phosphorus occurs naturally in rock formations in the earth's crust, usually as phosphate. High phosphate concentrations in surface waters may indicate fertilizer runoff, domestic waste discharge, or the presence of industrial effluents or detergents. Although phosphates from these sources are…

UN Number: UN3316

Detect free or total chlorine concentrations as low as 0.05ppm Test strips for field testing and quality-control procedures; provide a safe and economical alternative to reagent chlorine testing. Includes: 50 test strips are supplied in bottle labeled with instructions,…

Sulfite is not usually present in surface waters. If sulfite is discharged in effluents or from domestic wastewaters, it readily oxidizes to form sulfate. Sodium sulfite is the most common form of sulfite and is an excellent reducing agent with applications as an oxygen scavenger. Sulfite…

Tube test for the determination of TTC. Precise rapid tests for all kind of water and waste water analysis. Time-saving and reliable analysis together with Macherey-Nagel NANOCOLOR photometers. Measuring range: TTC - 0.050–2.300 A , TTC - 5–150 µg TPF

Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries),…

UN Number: UN3316

UN Number: UN3316

Tube test for the determination of Nitrite. Precise rapid tests for all kind of water and waste water samples. Time-saving and reliable analysis together with Macherey-Nagel NANOCOLOR photometers. Measuring range: Nitrite - 0.003–0.460 mg/L NO2-N, Nitrite - 0.02–1.50 mg/L NO2?

The LaMotte nitrate #2 CTA tablet is suitable for use in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage.

Low-level ammonia nitrogen may be naturally present in water as a result of the biological decay of plant and animal matter. Higher concentrations in surface waters can indicate contamination from waste treatment facilities, raw sewage, industrial effluents (particularly from petroleum refineries),…

VISOCOLOR Powder Pillows Silica LR reagent set for photometric determination of Silica in the low range. Ideal for boiler feed water analysis of high pressure boilers. Measuring range: 0.02-2.10 mg/L SiO2 Set of Molydate-, Citric acid- and Ascorbic acid reagent

Direct Reading Titrator For determining free carbon dioxide in water Range of 0 to 55 ppm CO2 in 1 ppm increments Employs APHA Method 406B with sodium hydroxide titrant. Sufficient for 50 tests at 50 ppm.

Insta-Test® strips are available to perform checks for water quality factors. Test strips are a quick way to monitor water without having to use reagents.

This kit tests for nitrate nitrogen using tablet reagents and the Octa-Slide 2 Comparator. Range/sensitivity is 0, 1, 2, 4, 6, 8, 10, 15 ppm NO₃ - -N Applications: Drinking Water, Environmental Education, Food and Beverage, Industrial Water Boiling and Cooling,…

UN Number: UN3316

UN Number: UN3316

The Legionella Swab Test Kit helps pinpoint the source of contamination in a system. Everything you need to collect a sample by swabbing pipes, shower heads, air conditioning units, water tanks, taps, spas and other surfaces where biofilms are growing is included. With results in 25 minutes,…

Yes/No qualitative test Sensitivity less than 2.2 per 100 mL of sample No incubation equipment required; only room temperature