m-value (total alkalinity - acid capacity up to pH 4.3, KS 4.3)

Duroval KS 4.3 – Precise Acid Capacity Titration for Swimming Pool Water Duroval KS 4.3 is a precise titration kit for determining acid capacity up to pH 4.3 in water. It is especially suitable for swimming pools and spas. The titration kit is ideal for routine monitoring of water quality in pools. The pipette is easy to read, and the reagents ensure reliable results. What is included in the Duroval KS 4.3? Measuring tube Calibrated dosing pipette Special connecting stopper 8 ml indicator 50 ml titration solution Reliable Titration for Determining Acid Capacity up to pH 4.3 The Duroval KS 4.3 titration kit allows precise determination of acid capacity up to pH 4.3 and is specially designed for monitoring water quality in pools and spas. Acid capacity is an important parameter for assessing the water’s buffering capacity and for safely adjusting the pH value. With its proven titration method, the kit delivers quick and reliable results, making it ideal for regular use during operation. Advantages of Duroval KS 4.3 for Swimming Pool Water Analysis Duroval KS 4.3 stands out for its ease of use and high measurement reliability. The clearly readable, calibrated dosing pipette enables precise dosing of the titration solution, while the clear color change of the indicator ensures safe evaluation. The compact kit is perfect for routine checks and helps operators maintain stable water quality, dose chemicals correctly, and ensure long-term swimming hygiene. 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.

The Duroval C test kit is an analysis kit for determining the carbonate hardness of water samples. It delivers reliable results within a few minutes. Measuring carbonate hardness – a practical solution With the Duroval C test kit, you can determine the carbonate hardness or the m-value (acid capacity up to pH 4.3; KS 4.3) in natural and technical water samples by titration using a liquid titrant and a dosing pipette precisely calibrated in °dH and mmol/l. Complete with measuring tubes, dosing pipette calibrated to 0–20 °dH and 0–7 mmol/l, special connecting stopper, indicator and 50 ml titration solution. This allows for up to approx. 100 analyses to be carried out at an average carbonate hardness of 10 °dH. The measurement time is approx. 2 minutes and the measurement accuracy is 0.5 °dH. How the measurement works Pour the water into the test tube, then add the titration solution drop by drop using the pipette, observing the colour change as you do so. Once the chemical endpoint is reached, you can read the carbonate hardness value in °dH or mmol/l.

DUROVAL® CPM Test Kit – Quickly Determine Carbonate Hardness & Acid Capacity Set for determining carbonate hardness, p-value, and m-value. The Duroval CPM Test Kit is designed to measure carbonate hardness (m-value; acid capacity up to pH 4.3; Ks 4.3) and p-value (acid capacity up to pH 8.2; Ks 8.2). The kit provides precise results within minutes and enables straightforward analysis. Contents of the DUROVAL® CPM Test Kit Measuring tubes Calibrated dosing pipette 0–20 °dH and 0–7 mmoI/I Special connection stopper Indicators for p-value and m-value 50 ml titration solution Precise determination of carbonate hardness, p-value, and m-value by titration The DUROVAL® CPM Test Kit is a professional analysis set for determining carbonate hardness and water acid capacity. It allows the measurement of p-value (Ks 8.2) and m-value (Ks 4.3), providing essential parameters for the evaluation of raw, process, and operational water. Using the proven titration method, users obtain fast and reliable results in just a few minutes. The kit is ideal for applications in water treatment, industrial processes, and technical operations. Advantages of the DUROVAL® CPM Test Kit for Water Analysis The DUROVAL® CPM Test Kit excels with easy handling and high measurement accuracy. The calibrated dosing pipette ensures precise titration, while the special indicators provide clear and easily visible color changes. The compact kit is ideal for mobile measurements, service operations, and routine checks. It provides a reliable manual solution to quickly assess carbonate hardness and acid capacity and ensures safe control of water chemistry processes. 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.