Heyl’s Duroval KS 4.3 titration solution is a ready-to-use refill solution for Duroval test kits. It is used for the precise determination of carbonate hardness or the m-value (acid capacity up to pH 4.3; KS 4.3) and, in combination with other Duroval components, can also measure the p-value (acid capacity up to pH 8.2; KS 8.2). Precise measurement of carbonate hardness and acid capacity The Duroval KS 4.3 titration solution is used as a component of the Duroval test kits and enables precise titration measurements of both the m-value (pH 4.3) and the p-value (pH 8.2). This allows water samples to be reliably tested for acid capacity and carbonate hardness. The solution is similar to Duroval C, but also contains a p-value indicator for extended analysis ranges. Suitable for: Duroval titration kits for measuring m-value and p-value Routine checks in laboratories, swimming pools and technical facilities Use in combination with indicators and measuring tubes for reproducible results Not suitable for: Use without the appropriate test kit Rapid tests without titration Measurements outside chemical titration procedures Why is the correct titration solution crucial? The Duroval KS 4.3 titration solution ensures that chemical reactions in the test system reach a clear endpoint, allowing the m-value and p-value to be determined reliably. Only with a high-quality, precisely dosed solution can the endpoint be visualised and the acid capacity calculated correctly.

The Duroval A Titration Solution Refill Pack is a 50 ml refill bottle containing liquid titration solution for determining water hardness. Refill solution for Duroval A – for accurate water hardness measurements This refill bottle containing liquid titration solution is used to restore the Duroval A test kit to working order. The solution is used in conjunction with the test kit to determine water hardness in German or French degrees of hardness. Tests: approx. 100 (at an average hardness of 15 °dH) Measurement parameter: Water hardness Measurement range: 0–30 °dH (0–60 °f) Measurement time: approx. 2 minutes Measurement accuracy: 0.5 °dH What is the Duroval A titration solution suitable for? The refill solution is only suitable if you already own the corresponding test kit. You cannot determine water hardness using the titration solution on its own. Ideal for regular measurements The refill bottle is very practical if frequent hardness measurements are carried out and a regular supply of reagents is required.

The Duroval B Titration Refill Pack is a 50 ml bottle containing liquid reagent for refilling the Duroval B test kit. Refill pack for very soft water 50 ml bottle of DUROVAL® B titration solution for determining the hardness of very soft or softened water samples by titration. The titration solution is sufficient for approx. 100 analyses at an average hardness of 1 °dH. The measurement takes approx. 2 minutes. The measurement accuracy is 0.05 °dH. What is the refill pack suitable for? The refill solution is only suitable if you already own a Duroval B test kit and the titrant needs replacing. It is not suitable as a standalone test kit. Without the rest of the kit’s contents, no independent analyses can be carried out. Addition to your test kit Together with your existing test kit, it ensures that you obtain precise and repeatable results without having to buy a new kit every time. The refill pack extends the service life of your testing system and is suitable for regular checks.

The Duroval C Indicator 8 ml refill pack is a liquid colour indicator for use with your Duroval C test kit. It makes the point at which the reaction has finished visible, allowing you to read the carbonate hardness value. Liquid indicator for your Duroval test kit Refill pack: For determining carbonate hardness or the m-value (acid capacity up to pH 4.3; KS 4.3) in all natural and technical water samples by titration with a liquid titrant. The liquid indicator from this refill pack complements your existing Duroval C test kit, enabling you to measure carbonate hardness reliably. The indicator ensures that the chemical turning point in the titration is clearly visible, allowing you to read the measurement easily. Why the liquid indicator is important To determine the carbonate hardness or the m-value (acid capacity up to pH 4.3; KS 4.3) in all natural and industrial water samples by titration using a liquid titrant. The indicator is a crucial part of the measurement method, as it is only through its colour change that it is possible to recognise when the chemical endpoint of the titration has been reached. Without this colour change, it would be difficult to determine the carbonate hardness value.

The Duroval C Titration Solution Refill Pack is a 50 ml replacement bottle for refilling your Duroval C test kit. Replacement solution for your test kit This is a titration solution for determining carbonate hardness or the m-value (acid capacity up to pH 4.3; KS 4.3) in all natural and technical water samples by titration. With the refill pack, you can replace the used-up titration solution in your existing Duroval C test kit. The solution is specially designed for determining carbonate hardness and ensures that the test kit can continue to be used. The refill bottle contains 50 ml of titration solution and is sufficient for approx. 200 analyses. The measurement time is approx. 2 minutes and the measurement accuracy is 0.5 °dH or 0.25 mmol/l. Work efficiently with the refill solution By using the refill solution, you do not need to buy a new complete kit and can carry out your analyses quickly without interrupting your testing routine.

With the refill pack for the Duroval Chloride Titration Solution C, you can continue to use your existing chloride test kit and reliably determine the chloride content in water. Essential solution for chloride determination Titration Solution C is a component of the Duroval® Chloride test kit and is used during measurement to precisely determine the chloride content of a water sample. It is used in conjunction with the other reagents and ensures that a clear endpoint (colour change) is reached during titration, at which the value can be read. This product is classified as a hazardous substance; please ensure you follow the safety data sheet. Easy to continue testing Once the solutions in the kit have been used up, they can be easily replaced with the refill pack and testing can continue immediately. This saves costs and ensures that your measurement results remain comparable.

The Duroval Chloride Reagents A + B Refill Pack contains the chemicals required to restore the existing Duroval Chloride Test Kit to working order. Refill reagents for reliable chloride measurements The refill pack supplements the Duroval Chloride Test Kit with the appropriate reagents. Together with the existing titration solution and pipette, they enable a simple and reproducible determination of the chloride content in the water. The reagents can only be used in conjunction with the test kit. They are not suitable for use on their own. Why are fresh reagents important? The reagents must react precisely for a water analysis to be reliable. New reagents ensure that the colour change remains clearly visible and that the measured chloride value is accurate.

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 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 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 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 replacement liquid Polyamine reagents A in a set of 10 pieces can be used as a replacement for various polyamine test kits. Polyamine reagents A (10 pieces) The Polyamine reagents A are packaged in a set of 10 pieces and are sufficient for multiple measurements. They are compatible with all polyamine test kits from the Heyl range and can be used together with Polyamine reagents B (400186) and C (400187). They can be used together with the following test kits Polyamine test kit K 26    400167 Polyamine test kit B42/C71    400168 Polyamine test kit V 15/30    400166 CCOH polyamine test kit    400165 They are not compatible with other non-polyamine test kits. Application areas of the polyamine test kits energy and power plants chemical industry pharmaceutical industry water treatment laboratories for water analysis Why Polyamine reagents A? precise analysis results easy handling fast reaction time compatible with all Heyl polyamine test kits

The 10 compact 50 ml Polyamine Reagent C vials are perfect for use on the go as well as for quick analysis in laboratories. They are used as refill solutions in Polyamine test kits. Polyamine Reagents C (10 pcs) Polyamine Reagent C is used to reliably determine the polyamine content in technical water systems. It is an essential component of the titration method in polyamine test kits and helps monitor the dosage of polyamines and other water treatment chemicals. Reagent C enables both precise laboratory analyses and fast on-site measurements. They can be used together with these Heyl test kits Polyamine Test Kit K 26 – 400167 Polyamine Test Kit B42/C71 – 400168 Polyamine Test Kit V 15/30 – 400166 CCOH Polyamine Test Kit – 400165 Possible applications Cooling water systems Water analysis laboratories Chemical industry Quality control in production facilities Water treatment Why choose Polyamine Reagents C? suitable for routine checks compatible with our polyamine test kits supports precise measurement results easy to use for water analysis

The replacement liquid Polyamine reagent B is supplied in a practical set of 10 bottles and serves as a refill reagent for polyamine test kits from Heyl. In combination with the corresponding test kits, it enables reliable determination of the polyamine content in many different areas. Polyamine reagents B – set of 10 pieces The Polyamine reagents B are packaged in a set of 10 pieces and are sufficient for multiple measurements. They are compatible with all polyamine test kits from the Heyl range and can be used together with Polyamine reagents A (400185) and C (400187) as refill reagents. Thanks to their compact and handy size, the bottles are particularly practical for mobile water analyses on site as well as for quick routine measurements in the laboratory. They can be used together with the following test kits from Heyl Polyamine test kit K 26    400167 Polyamine test kit B42/C71    400168 Polyamine test kit V 15/30    400166 CCOH polyamine test kit    400165 Possible application areas energy and power plants industrial cooling water systems food industry industrial circulation water systems Why Polyamine reagents B? compatible with our polyamine test kits ideal for routine analyses precise analysis results supports the control of chemical dosing

The Polyamine titration solution K26 + C reagent is a refill pack for the test kit item number 400167. The test kit is used to measure polyamine values in water samples. Polyamine refill pack titration solution K26 + C reagent Why is the refill pack useful? With the test kit, the polyamine values in your water samples can be visibly measured. The refill pack is ideal for providing consumables for repeated polyamine measurements and for continuing to use your test kit in a cost-efficient way. The refill pack consists of the appropriate titration solution as well as the C reagent in ready-to-use bottles with screw caps. Application areas for the Polyamine refill pack titration solution K26 + C reagent well water cooling circuits industrial process water water treatment systems

The refill pack Polyamine Titration Solution A-853R in a set of 10 bottles of 50 ml each is ideal for measuring low to medium polyamine concentrations. Polyamine Titration Solution A-853R (10 bottles á 50ml) The Polyamine Titration Solution A 853R is specially developed for the precise analysis of polyamines in industrial water systems. It serves as a refill solution for the A 853R test kit from Heyl and enables reliable monitoring of the dosing of polyamines and water treatment chemicals. It is suitable for low to medium polyamine concentrations, ideal for circulation and cooling water systems with standardized dosing. Why buy the Polyamine Titration Solution A-853R from Heyl? reliable analysis of polyamines in circulation and cooling water systems fast, reproducible results stable reagent quality for consistent measurements easy application in the laboratory and on site specially matched to the A 853R test kit Possible applications Water treatment Routine monitoring in power plants Pharmaceutical and food industry Laboratory analyses This solution is only compatible with the A 853R test kit and must not be used with other polyamine test kits.

The polyamine titration solution in a pack of 10 bottles of 50 ml each is a refill solution for the CCOH polyamine test kit from Heyl. Polyamine Titration Solution CCOH (10 bottles á 50 ml) Polyamine Titration Solution CCOH – Application and Benefits The polyamine titration solution CCOH is used to accurately analyze polyamine concentrations in water systems. It enables reliable monitoring of chemical dosing. Thanks to its stable composition, it is suitable for both laboratory testing and quick measurements directly on site. The polyamine CCOH solution is highly accurate and is perfect for higher requirements in dosing control. Possible applications of the CCOH test kit from Heyl Evaporative cooling systems and cooling towers Circulating water systems Laboratory analyses and routine checks Power plants and energy facilities Advantages of the titration solution Reliable measurement Ideal for industrial systems Stable reagent quality for consistent results Compatible with polyamine test kits The polyamine titration solution CCOH is intended exclusively for use with the corresponding CCOH test kit and is not compatible with other polyamine test kits. CCOH Polyamine Test Kit – Item number: 400165

The refill solution Polyamine Titration Solution V15/30 is suitable for the Polyamine Test Kit V15/30. It supports the control of polyamine dosing. Polyamine Titration Solution V 15/30 (10 bottles á 50ml) The Polyamine Titration Solution V 15/30 is used for the precise determination of polyamine content in industrial water systems. It is specifically designed for the V 15/30 test kits from Heyl and supports the control of polyamine and water treatment chemical dosing. The solution is suitable for both laboratory analyses and quick measurements directly on site. Ideally suited for small to medium polyamine concentrations. Why the Polyamine Titration Solution? Reliable determination High measurement accuracy Fast and easy application in the laboratory or on site Optimizes water treatment and corrosion protection Compatible with the V 15/30 test kit (#400166) Applications Evaporative cooling systems and cooling towers Metal processing and electroplating facilities Quality assurance in industrial water systems Ideal for mobile on-site measurements by service and maintenance technicians The titration solution V 15/30 is only compatible with the V 15/30 test kit (item number 400166) and must not be used with other polyamine test kits.

The Polyamine Titration Solution CCOH + C Reagent Refill Pack contains replacement chemicals for polyamine titration measurements. Replacement reagent for polyamine titration – simply top up This refill pack contains Reagent C (1 x 50 ml C reagent) and the titration solution (1 x 50 ml CCOH). These reagents are required for the titration measurement of polyamines. Simply refill and carry on working Replacing the old solution with the fresh reagent is straightforward and takes just a few steps Compatible with all relevant polyamine titration kits Continues to enable reliable and comparable measurements Convenient for users who frequently need to perform titrations

Polyamine NI Reagents A + B Refill Pack The refill pack contains replacement chemicals for compatible polyamine test kits. Reagents for Your Polyamine Test – Easy Refilling When the reagents in your polyamine test kit are used up, there is no need to replace the entire set. The refill pack includes both required reagents, A and B, which are necessary for the color reaction during measurement. Simply replace the old chemicals with the new ones. The reagents are specifically matched to polyamine test kits, ensuring your measurements remain clear, consistent, and comparable. Cost-Effective and Sustainable The refill pack is particularly suitable for users who regularly use their test kit. There is no need to purchase a new set; simply replace the consumed reagents. Using the correct chemicals ensures that measurement results remain reliable and comparable over time. Note: The Polyamine NI refill pack (Reagents A + B) is universally compatible with all polyamine test kits.