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

Refill pack: Reagent pH 5.5-8 for rapid manual analysis of the pH value in water in the range pH 5.5 to 8 for approx. 250 analyses. The individual values pH 5.5, pH 6, pH 6.5, pH 7, pH 7.5 and pH 8 can be read by visual colour comparison. The scope of delivery includes only the reagents for simple concentration determination. 1 set of reagents Measuring time: approx. 1 minute Analyses: approx. 250 Also available in the shop: Complete Testoval pH 5.5-8 test kit: Order no. 410610 Replacement colour comparison device pH 5.5-8: Order no. 410612

Refill pack: Reagent pH 8-12 for rapid manual analysis of the pH value in water in the range pH 8 to 12 for approx. 250 analyses. The individual values pH 8 mg/l, 8.5 mg/l, 9 mg/l, 10 mg/l, 11 mg/l and 12 mg/l can be read by visual colour comparison. The scope of delivery includes only the reagents for simple concentration determination. 1 set of reagents Measuring time: approx. 1 minute Analyses: approx. 250 Also available in the shop: Complete Testoval pH 8-12 test kit: Order no. 410616 Replacement colour comparison device pH 8-12: Order no. 410618

Testoval® pH Chlor DPD Test Kit – Color Comparison for pH and Chlorine Quick and reliable determination of pH value and free and total chlorine in water The Testoval pH-Chlor DPD Test Kit is designed for rapid manual analysis of pH and chlorine. The pH measurement range is 6.8–8.0, while the chlorine content is measured in the range of 0–1 mg/L. The values pH 6.8, 7.4, and 8.0 as well as 0.1 mg/L, 0.5 mg/L, and 1.0 mg/L chlorine can be read safely using optical color comparison. Original Heyl Test Kit for Rapid Determination of pH and Chlorine The Testoval® pH-Chlor DPD Test Kit from Heyl is an original color comparison kit for rapid manual analysis of pH and both free and combined (total) chlorine in water. It was specifically developed for the requirements of swimming pool water monitoring. Advantages of the Original Testoval® pH-Chlor DPD Test Kit The Testoval® pH-Chlor DPD Test Kit combines two important water parameters in one set (pH and chlorine), enabling particularly efficient water analysis. With a measurement time of approximately 3 minutes per test, around 70 measurements can be performed – ideal for routine monitoring during operation. As an original Heyl product, the test kit ensures high measurement reliability, reproducible results, and maximum reagent compatibility. It helps operators maintain stable water quality, control disinfection processes, and reliably meet hygienic standards. Frequently asked questions How long do Heyl chemicals last? The shelf life is printed on the label of each product. Upon delivery, the guaranteed shelf life is at least 7 months. Can Heyl reagents also be purchased individually? That depends on the specific item to be ordered. For Testoval products, only the complete refill pack can be ordered. The individual small bottles cannot be reordered separately. For the Duroval test kit, the individual components of the refill pack can also be reordered separately. Can the indicator and titration solution be purchased separately? Yes, this is possible for the Duroval product range. Where can I find the safety data sheet? The safety data sheet can be found directly with the product in our shop or separately in the download area under the relevant heading. How can the chemicals be disposed of? Disposal instructions can be found in section 13 of the safety data sheet. Disposal must be carried out in accordance with official regulations. Can the chemicals still be used after the expiry date? No, the chemicals can no longer be used after the expiry date. After the expiry date, accurate measurement results can no longer be guaranteed. How should Heyl chemicals be stored? Section 7 of the safety data sheet contains all relevant information on the storage of chemicals. The recommended storage temperature should be between 15-25°C.

TESTOVAL colour comparison kit pH 5.5-8 for quick manual analysis of the pH value in water in the range pH 5.5 to 8. The individual values 5.5 mg/l, 6 mg/l, 6.5 mg/l, 7 mg/l, 7.5 mg/l and 8 mg/l can be read by visual colour comparison. In addition to the reagents, the scope of delivery includes a colour comparison device for easy concentration determination. Number of analyses: approx. 250 Measuring time: approx. 1 minute Also available in the shop: 1 set of reagents for approx. 250 analyses: Order no. 410611 Replacement colour comparison device: Order no. 410612

TESTOVAL colour comparison kit pH 8-12 for quick manual analysis of the pH value in water in the range pH 8 to 12. The individual values 8 mg/l, 8.5 mg/l, 9 mg/l, 10 mg/l, 11 mg/l and 12 mg/l can be read by visual colour comparison. In addition to the reagents, the scope of delivery includes a colour comparison device for easy concentration determination. Number of analyses: approx. 250 Measuring time: approx. 1 minute Also available in the shop: 1 set of reagents for approx. 250 analyses: Order no. 410611 Replacement colour comparison device: Order no. 410612

Replacement color comparator without cuvette, for fast manual analysis of the pH value in water in the range pH 8 to 12.The individual values 8 mg/l, 8.5 mg/l, 9 mg/l, 10 mg/l, 11 mg/l and 12 mg/l can be read by optical color comparison. Only the color comparator for simple concentration determination is included in the scope of delivery.Measuring time: approx. 1 minuteAlso in our assortment: 1 set of Testoval pH 8-12 reagents for approx. 250 analyses: order no. 410617 Complete test set Testoval pH 8-12: Order no. 410616