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.

The Duroval Indicator Refill Pack is a small bottle of liquid indicator required to restore the water hardness test kit to working order. Liquid indicator for Duroval test kits 8 ml bottle of DUROVAL® liquid indicator Refill bottle for determining water hardness across all hardness ranges. This is used in a Duroval titration test kit so that, when measuring water hardness, it is immediately apparent when the chemicals react and the result is confirmed. In combination with the titration solution, this leads to a colour change at the endpoint. This colour change allows you to determine water hardness without the need for technical equipment. What is the refill pack suitable for? The refill pack is only suitable if you already have the appropriate test kit and the colour indicator needs replacing. It is not suitable as a standalone product for measurement without a test kit. What does the liquid indicator do? The indicator ensures that the endpoint of the titration becomes visible, i.e. the exact moment when the colour change occurs. Without this colour change, it is difficult to achieve accurate results.

The Duroval KB 8.2 Heating System Feed Water is a titration analysis kit for determining the base capacity up to pH 8.2 (KB 8.2) in water samples, e.g. from heating or technical circuits. It contains all the necessary components – measuring tubes, a calibrated pipette, 8 ml of indicator and 50 ml of titration solution. Fast and precise determination of base capacity The Duroval KB 8.2 Heating System Feed Water Kit is suitable for titrimetric measurement of base capacity in natural and technical water samples. The supplied pipette allows the titration solution to be dispensed precisely. The colour change of the indicator clearly indicates the chemical endpoint. This enables you to obtain reliable results in a short time. Suitable for: Checking and monitoring heating and cooling circuits Technical water sampling in laboratories, industrial plants or building services Service and maintenance operations where base capacity must be checked regularly Not suitable for: Measurements without the complete titration kit Applications outside the KB 8.2 measurement range or without a chemical titration method Why is measuring base capacity important? Base capacity indicates how much acid water can buffer before its pH falls below 8.2. This is a key parameter for the condition of heating and process water. Without these measurements, changes in the water cannot be reliably detected, which can lead to corrosion, deposits or malfunctions.

The Duroval Ks 4.3 Indicator 8 ml refill pack is a colour-changing indicator for titration measurements to determine the acid capacity in water samples up to pH 4.3. Reliable monitoring of acid capacity in water samples The indicator enables reliable titration measurements. Thanks to a clear colour change, it is indispensable for correctly determining acid capacity. Particularly in all natural and technical water samples, it helps to monitor water quality and prevent damage caused by incorrect pH values. Suitable for: Duroval titration kit for acid capacity measurement (pH 4.3) Routine checks Repeated measurements Not suitable for: Use without the appropriate test kit Independent water analysis without titration Applications outside chemical titration procedures Why is a functioning indicator crucial? It is only through the colour change produced by the indicator that the exact endpoint of the titration can be identified. Without it, the measurement results become unreliable, which can lead to misinterpretations of water quality. With the refill pack, your test kit is ready for use again without you having to buy a new set.

The Duroval P Indicator 8 ml refill pack is a liquid indicator for use in Duroval titration test kits. It is used to analyse water samples as part of chemical titration procedures. Precise water analysis with Duroval P-Indicator 8 ml bottle of DUROVAL® P-Indicator refill bottle for determining water hardness across all hardness ranges. The Duroval P-Indicator supports reliable titration measurements in water samples. As a component of a Duroval test kit, it enables reproducible results in routine analyses. The refill bottle is easy to dispense and is designed to work with Duroval analysis systems. Suitable for: Water analysis using Duroval test kits Maintenance of water treatment and heating systems Laboratories and technical areas requiring regular water testing Not suitable for: Use without a suitable test kit Applications outside of chemical titration procedures Why is the correct indicator essential? The indicator is a crucial component of any titration measurement, as it is only through the indicator that the so-called endpoint becomes visible. Without it, the measurement result cannot be reliably determined. Even small deviations can lead to incorrect assessments of water quality or the condition of the system.

The DUROVAL® Sulphate Test Kit is a titration kit for determining the sulphate content in water, containing all the necessary reagents and accessories. The Duroval Sulphate SO4 Titration Kit is a complete measurement kit for determining the sulphate content in water. Using the pipette and chemical reagents provided, you can measure the sulphate content of water samples directly on site. Easy-to-use test kit for sulphate in water The supplied titration pipette is calibrated for 0–300 mg/l SO42-. By refilling the titration pipette, the measuring range can be extended to double the concentration, and by diluting the water sample with distilled water, to ten times the concentration. The kit contains everything needed for approx. 30 analyses and provides a measurement accuracy of 10 mg/l SO42- for a standard sample. At a 1:10 dilution, the accuracy is 100 mg/l SO42-. Suitable for: o Direct measurements of sulphate content in water samples o Users without a laboratory o Repeated measurements Not suitable for: o Use without the complete test kit o Measurements outside the extended measurement range o Rapid tests without chemical titration Why is sulphate measurement important? In excessive concentrations, sulphate can impair technical equipment, cause deposits or alter the taste of water. This kit allows you to determine the sulphate content. The colour change during titration clearly indicates the endpoint, making the measurement quick and easy to understand. Product information: Duroval titration kit complete with all reagents and accessories Number of analyses: approx. 30 Titration pipette: calibrated 0–300 mg/l SO₄²⁻ Measurement accuracy: 10 mg/l SO₄²⁻ (When the water sample is diluted in a ratio of 1:10, the measurement accuracy is 100 mg/l SO₄²⁻)

The Duroval Sulphate SO₄ Reagent A Refill Pack contains two bottles, each containing 50 ml of chemical reagent A, which is required for sulphate measurement using the Duroval SO₄ titration kit. Reagent A is part of the chemical mixture which, together with other components, enables the sulphate content in water to be measured. The Duroval Sulphate SO₄ Reagent A Refill Pack contains two bottles, each containing 50 ml of chemical reagent A. This is used for sulphate determination with the Duroval SO₄ titration kit. Reagent A is a component of the chemical reagent mixture which, together with other components, enables the determination of the sulphate content in water. Reagent required for sulphate measurement (h3) Reagent A is a component of the chemical composition in the Duroval Sulphate Test Kit. It is used together with the other reagents and the titration solution to make a small chemical reaction visible in the test. This refill pack allows the kit to be made ready for use again. It is only suitable for measurements using the appropriate Duroval sulphate titration kit. Measurements cannot be carried out without this kit. Why is it useful to top up Reagent A? (h3) In order to identify the endpoint of the measurement, several chemical components are required to react together. Without Reagent A, the test does not function fully, as a crucial component is missing. By topping up, you can use the test kit for longer and with greater reliability.

DUROVAL® Sulphate SO4 Reagent B Refill Pack. This is compatible with the DUROVAL® Sulphate titration kit for determining the sulphate content in water. Refill pack: 1 bottle containing 8 ml. DUROVAL® Sulphate SO4 Reagent B The Duroval Sulphate SO4 Reagent B refill pack contains an 8 ml bottle of chemical reagent B, which is required for measuring sulphate in water in conjunction with the other chemicals in the Duroval Sulphate kit. Without this reagent, the test cannot be carried out in full, as an important component of the chemical reaction would be missing. Refill pack for sulphate water analysis Reagent B is a key component of the chemical solution used in the Duroval SO4 test kit to make the sulphate content visible. When combined with the other components, it produces a colour reaction that indicates the amount of sulphate present in the water. The refill pack can only be used in combination with the Duroval SO4 test kit; it is not suitable for measurements without this kit. Why is Reagent B important? Several reagents work together in a chemical sulphate measurement to ensure the reaction proceeds correctly. If Reagent B is missing, a crucial component of the reaction system is absent, meaning the sulphate content cannot be reliably determined.

Refill pack for the DUROVAL® Sulphate titration kit for determining the sulphate content in water. Refill pack: 50 ml bottle of DUROVAL® Sulphate Titration Solution C. This solution is a key component of the Duroval SO4 2-titration kit. Essential refill solution for sulphate measurements Refill pack for the DUROVAL® Sulphate titration kit for determining the sulphate content in water. The refill pack contains a bottle with 50 ml of DUROVAL® Sulphate Titration Solution C. This solution is an essential component of the DUROVAL SO4²⁻ titration kit. The titration solution is used in the Duroval SO42- test kit together with Reagent A, Reagent B and the calibrated pipette to trigger a chemical reaction. This reaction produces a colour change that indicates the amount of sulphate present in the water. The reagent is sufficient for several measurements and ensures that you obtain reliable results. The solution can only be used in combination with the test kit. Why is the titration solution important? (h3) Titration solution C is a key component of sulphate measurement. It reacts during a specific chemical step and indicates the endpoint of the titration through a colour change. The sulphate content cannot be reliably determined without this solution.

The Duroval TF test kit is a set for determining water hardness across the entire hardness range. With the pipette and titration solution, you can obtain reliable measurement results quickly. Test water hardness easily With the Duroval TF test kit, you can determine water hardness by titration and quickly identify whether your water is soft or hard. The kit is particularly suitable for initial set-up of water treatment systems. This allows you to keep an eye on water quality and react in good time. Application: Industrial kit for determining water hardness across all hardness ranges via complexometric titration using a titrant and a dosing pipette precisely calibrated in degrees of hardness. Fast results with compact equipment The test kit contains test tubes, powder indicator, a dosing pipette calibrated to 0–60 °f (French hardness) and 30 ml of titration solution. Tests: approx. 60 (at an average hardness of 26.7 °f) Testing time: approx. 2 minutes Accuracy: 1 °f The result is easy to read thanks to the clearly visible colour change.

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. 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 TI Titration Solution Refill Pack (25 ml bottle) for refilling your existing Duroval TI test kit. For determining water hardness in the range 0–30 °dH (0–60 °f).

The Duroval TI with pipette (0–60 °f) is a titration test kit for determining water hardness. With its liquid indicator and calibrated pipette, it delivers rapid results. Precise water hardness analysis with the Duroval test kit With the Duroval test kit, you can reliably determine the hardness of your water in French degrees of hardness without an electronic measuring device. The kit consists of a measuring tube, a stopper to seal the measuring tube, a liquid indicator, a calibrated dosing pipette (0–60 °f French hardness) and 30 ml of titration solution. Tests: approx. 60 (based on an average hardness of 26.7 °f) How does the test kit work? The Duroval method allows for a quick and straightforward determination of the total hardness of water, without the need for any additional equipment. In hard water, the indicator initially turns a deep red. When the titration solution is then added, it binds the hardness components, causing the colour to change from red to green. The volume of titration solution dispensed using the measuring pipette up to this colour change corresponds to the hardness of the water sample. The total hardness value can be read directly from the measuring pipette.

KSS titration kit, measuring kit for simple concentration monitoring of metalworking fluids (KSS) by titration. Complete set with all reagents and accessories from Heyl. KSS Titration Kit The KSS titration kit from Heyl has been specially designed for the precise analysis of cooling and lubricating fluids (KSS) in industrial circulation and cooling systems. It enables reliable control of chemical concentrations, thereby optimizing the performance, safety, and service life of systems. It is suitable for standard KSS concentrations in industrial circuits, both for low and medium concentrations. Advantages of the KSS titration kit Easy handling for laboratory and on-site use Fast analysis Precise and reproducible results Ideal for service operations and regular maintenance Possible applications of the KSS titration kit Laboratory analyses for quality assurance of KSS Power plants and energy facilities Evaporative cooling systems and cooling towers Industrial circulation systems

A pipette suitable for the DUROVAL B, BP and Water Hardness DUO test kits. These kits are available as complete sets in our online shop. Item numbers for the compatible test kits: Duroval B: 400030    Duroval BP: 400031    Water Hardness DUO: 400005 What is the pipette suitable for? The pipette for the 0–2 °dH range is specially designed for use with the corresponding test kits and ensures accurate measurement results during titrations or other analytical applications. It is included in the scope of delivery of the aforementioned test kits. It is ideal for use in laboratories, water treatment and industrial plants – in short, wherever the pH value needs to be determined. Thanks to its ease of use, it is easy to transport. Advantages: Precise dosing for accurate measurement results Suitable for selected Duroval test kits Compact and easy-to-handle design

The replacement pipette for the measurement range 0–20° dH or 0–7 mmol/l is compatible with the Duroval C and Duroval CPM test kits. It is included in the test kit set but can also be ordered as a single item. Item numbers for the compatible test kits: Duroval C: 400060    Duroval CPM: 400065 What is this pipette suitable for? The pipette serves as a suitable replacement and accessory for the aforementioned water hardness test kits. It enables precise dosing of liquids and thus supports reliable analysis of water hardness in the range from 0 to 20° dH. Areas of application: Water treatment Water hardness measurement Industrial plant monitoring Laboratory Advantages: Compatible with suitable Duroval test kits Precise dosing of analytical liquids Easy to use

This set contains the titration solution V 15/30 as well as two refill packs of the C reagent for the Polyamine test kit V 15/30 (item number: 400166). Ideal for precise and reliable measurement of polyamines in laboratory samples and other application areas. Refill pack Polyamine titration solution V 15/30 + C reagent Why the refill pack makes sense? The refill pack for the Polyamine test kit V 15/30 is ideal for determining measurement values between 15 mg/l and 30 mg/l. It is used to measure and determine whether the polyamine value is within a defined range. In terms of sustainability and cost efficiency, purchasing a refill pack saves you from having to buy a completely new test kit. Various application areas for the Polyamine test kit V 15/30 refill set well water cooling circuits process water or industrial applications

The CCOH Polyamine Test Kit is used to determine the polyamine concentration in circulating water. This polyamine test kit is a titration set. The CCOH Polyamine Test Kit is a set for determining polyamines in water. The test kit for polyamine determination works according to the principle of titration. All polyamine test kits use a pipette calibrated in the range of 0 to 60 mg/l (resolution: 1 mg/l). If needed, a second pipette filling can be added, extending the measurement range up to 120 mg/l (K26). Visible measurement of polyamines in water A water sample is taken with the test kit, the appropriate reagents are added, and the color change is observed. Approximately 100 analyses can be performed at an average concentration of 30 mg/l, with a measurement time of about 3 minutes. Please read the enclosed instructions carefully. Features at a glance Manual determination of polyamine content without electronic devices Color change for simple and direct reading Fast results within a short time Compact all-in-one solution with reagents Analyses: approx. 100 (at an average content of 30 mg/l) Measurement time: approx. 3 minutes Resolution: 1 mg/l

Water Hardness DUO Titration Kit – Flexible Hardness Analysis For precise measurement of water hardness The Water Hardness DUO Titration Kit is designed to measure water hardness in raw water (30–80 °dH) and treated water (0–2 °dH). With the DUO kit, you can reliably determine the hardness of both raw and treated water. The set includes all necessary reagents and accessories for immediate use. Precise Determination of Water Hardness in Raw and Treated Water The Water Hardness DUO Titration Kit provides a flexible and reliable analysis of water hardness for both raw and treated water. It covers a wide measurement range from 30–80 °dH in raw water and 0–2 °dH in treated water, making it ideal for various applications in water treatment. The kit is designed for users who require fast and accurate hardness measurements, whether for untreated raw water or softened water. Advantages of the Water Hardness DUO Titration Kit With the DUO titration kit, two measurement ranges can be covered with a single set. This reduces the need for separate measurement systems and allows efficient monitoring of water hardness before and after treatment. The set includes all necessary reagents and accessories for immediate use. The manual titration method delivers precise and reproducible results and is particularly suitable for control measurements, commissioning, or mobile applications in water analysis. 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.