MedSolut AG

Water stills and water treatment in the laboratory

At you will find first-class products for water treatment in the laboratory. In our diverse online catalogue, we offer you a broad product portfolio at remarkable conditions. You can also benefit from our customer-oriented service and professional advice.

Items 1 - 24 of 24

Why are water treatment systems needed in the laboratory?

Water treatment in the laboratory is of great importance in many areas. Discover innovative, high-quality solutions for water treatment in the laboratory in the MedSolut portfolio. Please contact us if you have any technical questions or would like more information.

Sterile laboratory water

Wherever laboratories, clinics and other facilities work with cell cultures, sterile laboratory water should be used. Sterile laboratory water is also an essential companion in areas where yeasts or other microbiological applications are handled. Order your laboratory water treatment products directly from, such as functional membrane filters with hollow fiber technology.

Bacteria-free water in the analytical laboratory

Whether in the production of pharmaceuticals, in analytical laboratories or in biotechnology - so-called endotoxin-free water is used everywhere. Endotoxins are the decomposition products of bacteria. They can make people ill, trigger allergic reactions or even change the measurement results in the laboratory. Systems and solutions for treating water, for example with special microfilters, retain bacteria and thus ensure reliable protection.

For pure water without germs

In the field of biotechnology as well as in chemical and medical areas, systems for ultra-pure water treatment are indispensable. When water is stored over a long period of time, microbial colonization or biofilm usually occurs. These are particularly measurable in pipe systems, outlets and tanks. Individual water treatment solutions are required to eliminate such germ reservoirs. We will show you the most efficient ideas and possibilities.

Water treatment systems - our range at a glance

We have the right laboratory water treatment solutions for every need and every requirement. Whether descaling systems or pure or ultrapure water systems - we will be happy to help you put together your new portfolio. Discover our high-quality products:

Descaling systems

At, you can obtain top-quality descaling and double softening systems. The sustainable performance and excellent user convenience that a descaling system offers you in your laboratory and institute work are consistently convincing. We will be happy to take the time to advise you individually and in detail.

Pure and ultrapure water systems

At you will find the optimum ultrapure water system which is of fundamental importance for bacteriological or medical sample preparation. also has suitable ultrapure water systems for the preparation of tissue and cell cultures as well as for the production of ointments and reagents. The sustainable performance and easy handling will convince you! All organic substances are eliminated from the water and anions and cations are separated out.

Laboratory water treatment process

The functional water treatment systems are extremely well thought-out and provide valuable assistance for a wide range of applications. We will be happy to show you the proven methods for water treatment in the laboratory:

Reverse osmosis

Reverse osmosis allows you to produce drinking water that is almost 100 percent pure. All pollutants such as pesticides, hormones, bacteria, nitrates, germs and much more are removed. The raw water is pressed against a synthetic, semi-permeable membrane. Water passes through, but the substances it contains do not. By exerting pressure, the salt content of the remaining concentrate increases and the osmotic pressure rises. As a result, impurities are flushed away and only clean water reaches the other side of the membrane.


The term distillation comes from Latin and means "to trickle down" (from "destillare"). The distillation process is a thermal separation process used to separate liquid mixtures from one another. When water is distilled, it is brought to the boil. The resulting vapor is collected in a condenser. This condensate is the purified water, which is free of minerals, salts and other substances as a result of the thermal treatment.

Ion exchange

Ion exchangers are systems for water treatment in the laboratory whose interior is equipped with resin beads. These eliminate iron, manganese, calcium and magnesium ions, which are then replaced by sodium ions. Ion exchangers are only operated with a pump and are particularly energy-saving.

UV filtration

UV filtration uses UV light to kill bacteria, germs and other harmful substances. The UV lamps in question are installed in the consumer pipes and cleaning takes place as soon as the substances contained in the water pass through them.

Classification of pure and ultrapure water by type

Modern laboratory water purification systems comply with industry standards in accordance with ASTM D11931 Type 1 ISO 3696 Type 1 and the CLSI-CLRW guideline. They therefore deliver ultra-pure water of excellent quality. Water can be classified into purity grades based on the content of different substances. Pure water is no longer only used in industry, but is also increasingly being used in everyday life.

  • Pure water is the water that you receive after water treatment in the laboratory. You can use it as drinking water and enjoy it without further ado.

  • Ultrapure water, on the other hand, is used for the production of medicines, for the manufacture of injection fluids, in chemical analysis and in medical research.

Pure water becomes ultrapure water

Multiple distillation makes it possible to remove as many foreign substances as possible from the water. The higher the number of distillation processes, the higher the purity of the water. The purity of the water can also be determined by measuring the electrical conductivity. Generally speaking, ultrapure water is produced in two steps. First, the water is demineralized by means of membrane filtration or in an ion exchanger. The aim is to achieve a conductivity of 10 µS/cm. Further processes are then used to process the demineralized water into ultrapure water. The focus here is usually on the use of a high-throughput blending bed or electrical de-ionization.

Categorization of water qualities by type:

Based on the applicable ISO 3696:1987 standard, a distinction is made between three water purity grades. The categorization is based on the following parameters

  • the pH value at 25 °C (water with a pH value of 5.0 to 7.0 belongs in the "Grade 3" category)

  • the conductivity (µS/cm at 25 °C): Grade 1 is assigned the value 0.1, Grade 2 is assigned the value 1.0 and Grade 3 is assigned the value 5.0

  • Oxidizable matter, oxygen content (mg/l, max): Grade 1 is non-existent in this respect, grade 2 is assigned the value 0.08, while grade 3 is assigned the value 0.4.

  • Absorbance at 254 nm and a length of 1 cm (absorbance units, max.): For grade 1 the value is 0.001, for grade 2 it is 0.01 and grade 3 does not occur.

  • Residue after evaporation when heated to 110 °C (mg/kg, max.): No value is recorded at grade 1, at grade 2 the value is 1 and at grade 3 the value is 2.

  • Silicon content (mg/l, max.): For grade 1 the value is 0.01, for grade 2 the value is 0.02 and the value for grade 3 is non-existent.

Setting up water treatment in the laboratory - what needs to be considered?

In laboratories, in the field of medical technology, in clinics and doctors' surgeries, the requirements for pure water are high. The options and technologies for water treatment in the laboratory are extremely varied. We will be happy to work with you to find the best solution for you. You should consider the following when planning water treatment concepts in your laboratory:

For which areas of application do you need a water treatment system?

Whether for supplying clean rooms, for feeding ultra-pure water systems or for selected laboratory applications - look out for customized technologies that fully meet your requirements.

What is the quality of the water at your site?

Depending on how and with what the water is contaminated, specific solutions are required. This is the only way to be sure of getting the water quality that is suitable for your work.

Do you need a centralized or decentralized water treatment system?

Whether a centralized or decentralized system makes sense depends, among other things, on the water requirements and the condition of the pipes in your laboratory or company. In general, it is helpful to have information on the local conditions available in order to be able to plan efficiently and at the same time save costs.

What specifications, guidelines and legislation apply in your laboratory?

The official regulations and laws must be taken into account when planning a system for water treatment in the laboratory. Talk to us. We will be happy to provide you with advice and assistance in the targeted selection of suitable solutions.

Water treatment for laboratories: We support you with the planning!

Our competent team of experts is there for you for all questions relating to the planning and design of your laboratory water treatment system. Our experienced technicians are very familiar with this complex topic and can also help you with legal matters. We look forward to providing you with individual advice and support when it comes to professional water treatment in the laboratory. You are welcome to contact us today by telephone on +49 30 209 657 900 or contact us by e-mail at