DUROVAL® TF is an industrial test kit for the determination of water hardness across all hardness ranges via complexometric titration with a liquid titration agent and a pipette, accurately calibrated in hardness units.   Especially recommendable as initial equipment for water softening installation.   Description   Complete with measuring tube, pipette calibrated from 0-4 °f (French hardness), special junction stopper, powder indicator and titration solution. Analyses: approx. 60 (at an average hardness of 26,7 °f) Measuring time: approx. 2 minutes Accuracy: 1 °f

Duroval TI Test Kit 0-30 °dH from Heyl – Industrial Water Hardness Analysis Titration test kit for determining total water hardness The Duroval TI Test Kit 0-30 °dH is an analysis set for precise determination of total water hardness in water samples via complexometric titration. The TI test kit provides fast and reliable results in the range of 0 to 30 °dH. In approximately 2 minutes, users receive meaningful measurements with an accuracy of 0.5 °dH. Contents of the test kit: Measuring tube Indicator Calibrated dosing pipette 0–30 °dH 30 ml titration solution Reliable Total Hardness Determination via Complexometric Titration The Duroval TI Test Kit 0–30 °dH is a professional analysis set from Heyl for precise determination of total water hardness in industrial and commercial applications. The proven complexometric titration method ensures accurate analysis of raw, process, and operational water across a wide measurement range. The test kit delivers fast and reproducible results. Within approximately 2 minutes, users obtain meaningful measurements with an accuracy of 0.5 °dH, making it ideal for routine checks and commissioning. Advantages of the Duroval TI Test Kit for Industrial Applications The Duroval TI Test Kit stands out due to its simple handling and high measurement reliability. The calibrated dosing pipette ensures precise addition of the titration solution, while the clear color change of the indicator enables accurate evaluation. The compact set is especially suitable for mobile measurements, service tasks, and regular checks in industrial water treatment. It provides a precise manual alternative to automated measurement systems and supports efficient quality and process monitoring.

As test kit type TI, but with liquid indicator and dosing pipette calibrated on0-60 ° f (French hardness).

KSS titration kit for simple monitoring of the content of cooling lubricants (KSS)by titration. Complete with all reagents and accessories. Concentration rangeand accuracy customized.

Refill pack: TESTOVAL hydrazine reagents for rapid manual analysis of the hydrazine content in water in the concentration range 0–1 mg/l N2H4. 1 set of reagents (2x 52ml) Analyses: approx. 100 Measuring time: approx. 2 minutes The individual values 0 mg/l, 0.05 mg/l, 0.1 mg/l, 0.25 mg/l, 0.5 mg/l and 1 mg/l can be read by visual colour comparison. The scope of delivery includes only the reagents for simple concentration determination. The colour comparison device or the complete test kit are also available in the shop. Also available in the shop: TESTOVAL Hydrazine colour comparison device: Order no. 410558 Complete TESTOVAL Hydrazine test kit: Order no. 410556 Gold Analysis with a Hydrazine Test Kit

Refill Pack Reagents for Testoval Iron 0–1 mg/L (II + III) – Original from Heyl Colorimetric reagents for determining dissolved iron in the low concentration range for approx. 100 analyses With the refill pack reagents for Testoval Iron 0–1 mg/L (|| + |||) for the concentration range of 0–1 mg/L Fe, you can replenish your existing Testoval Iron analysis kit with a complete set of chemical reagents for determining iron in water. Original Heyl reagents for precise iron determination in the low measurement range The measurement range covers 0–1 mg/L Fe. Individual values of 0.05 mg/L, 0.1 mg/L, 0.25 mg/L, 0.5 mg/L, 0.75 mg/L, and 1.0 mg/L can be safely read using optical color comparison. As an original Heyl product, the reagents are precisely matched to the Testoval Iron test kit, ensuring consistently reliable results. Advantages of the Original Heyl Refill Reagents for Testoval Iron The refill pack allows for approximately 100 analyses, with a measurement time of about 7 minutes per sample. This makes the set an economical and efficient solution for regular iron analyses in drinking, process, and industrial water. By diluting the water sample at a 1:10 ratio with distilled water, the measurement range can be flexibly extended up to 10 times the iron concentration. Using original Heyl reagents ensures consistently high measurement quality, maximum compatibility, and reliable water analysis.

Refill Pack Reagents for Testoval Iron 0-10 mg/L (|| + |||) Reagents for measuring dissolved iron levels up to 10 mg/L With the refill pack reagents for Testoval Iron 0-10 mg/L (|| + |||) from Heyl, you can supplement or refill your existing Testoval Iron analysis kit. The refill pack covers a measurement range from 0.25 mg/L to 10 mg/L Fe and allows for approximately 60 analyses. Reagents for reliable determination of dissolved iron in water The measurement range extends from 0.25 mg/L to 10 mg/L Fe. Individual values of 0.25 mg/L, 0.5 mg/L, 1 mg/L, 2.5 mg/L, 5 mg/L, and 10 mg/L can be safely read via optical color comparison. The refill pack is ideal for routine analyses in water monitoring. Advantages of the Testoval Iron Reagent Refill Pack The refill pack allows existing test sets to be used economically without purchasing a complete new analysis kit. The included reagents are precisely matched to the Testoval Iron measurement procedure from Heyl, ensuring reliable and reproducible results. The set enables approximately 60 analyses, with a measurement time of about 7 minutes per sample. The refill pack thus supports consistent measurement quality and efficient monitoring of iron levels in drinking, process, and industrial water.

Refill pack: 1 set of TESTOVAL pH-Chlor DPD reagents for rapid manual analysis of the pH value in the range pH 6.8 - 8 and the chlorine content in the concentration range 0 - 1 mg/l (free and total chlorine) in swimming pool water. The pH values pH 6.8, pH 7.4 and pH 8 and the values for the chlorine content 0.1 mg/l, 0.5 mg/l and 1 mg/l can be read by optical colour comparison. The scope of delivery includes only the reagents for simple concentration determination. 1 set of reagents Number of analyses: approx. 70 Measuring time: approx. 3 minutes Also available in the shop: Complete colorimetric test kit pH-Chlor DPD: Order no. 410601 Replacement colour comparison device pH-Chlor DPD: Order no. 410603

Reagents for rapid manual analysis of aluminium content in water in the concentration range 0–1.5 mg/l Al. The individual values ... 0 mg/l, 0.1 mg/l, 0.2 mg/l, 0.5 mg/l, 1 mg/l and 1.5 mg/l can be read by optical colour comparison on the colour comparison device. By diluting the water sample in a ratio of 1:10 with distilled water, the measuring range can be extended to 10 times the concentration. 1 set of reagents (1xA, 2xB) Number of analyses: approx. 130 Measuring time: approx. 6 minutes - Complete colour comparison kit including the 2 reagents and accessories: Order no.: 410650

Reagents for rapid manual analysis of the ammonium content in water in the concentration range 0–10 mg/l NH4+. The individual values 0.1 mg/l, 0.5 mg/l, 1 mg/l, 2.5 mg/l, 5 mg/l and 10 mg/l can be read by optical colour comparison. The colour comparison device for easy concentration determination can be ordered separately or as part of a set with the reagents. 1 set of reagents (1xA, 1xB, 1xC) Number of analyses: approx. 70 Measuring time: approx. 4 minutes Also available from us: Complete colour comparison set Testoval Ammonium: Order no.: 410680 Replacement colour comparison device Testoval Ammonium: Order no.: 410682