Quality assurance

We assure the quality of your products.

We guarantee you a consistently high level of quality of our products. How do we do this? By means of ongoing analyses and lab examinations performed by our Quality Assurance team. It regularly takes samples of raw materials and from running production.

These are then analyzed and documented using state-of-the-art analysis and test equipment on the basis of internationally applicable norms before a batch is released for filling.

ASTM D4340 corrosion testing

In this 168-hour static corrosion test, we examine the extent to which a coolant is able to protect the test sample from corrosion while enabling a specified amount of heat transfer from the metal coupon to the coolant. The metal test sample is heated to and maintained at a constant 135 °C while the resulting equilibrium temperature of the coolant it is immersed in is measured. If this equilibrium temperature falls from the normal 105 °C for instance to 90 °C, it may indicate that a thick insulating coating has formed on the test sample. This test also involves a subsequent visual examination of the test sample and gravimetric corrosion analysis.

ASTM D4340 corrosion testing

In this 168-hour static corrosion test, we examine the extent to which a coolant is able to protect the test sample from corrosion while enabling a specified amount of heat transfer from the metal coupon to the coolant. The metal test sample is heated to and maintained at a constant 135 °C while the resulting equilibrium temperature of the coolant it is immersed in is measured. If this equilibrium temperature falls from the normal 105 °C for instance to 90 °C, it may indicate that a thick insulating coating has formed on the test sample. This test also involves a subsequent visual examination of the test sample and gravimetric corrosion analysis.

FVV corrosion testing

The Research Association for Combustion Engines (known in Germany as the FVV) has developed testing methods to determine the suitability of coolants for use in internal combustion engines. These dynamic FVV tests ascertain the ability of inhibitors to protect the cooling system from corrosion at heightened temperatures and variable levels of heating. In addition to the visual assessment of the metal surface, the samples are also subjected to a subsequent gravimetric analysis.

Thermal stability in high-pressure autoclaves

Thermal stability is an important criterion for the quality of heat transfer media. To achieve temperatures of 220 °C and higher over the course of several weeks in aqueous solutions, very high pressures are required. These pressures can only be reliably achieved in special steel containers known as autoclaves.

Thermal stability in high-pressure autoclaves

Thermal stability is an important criterion for the quality of heat transfer media. To achieve temperatures of 220 °C and higher over the course of several weeks in aqueous solutions, very high pressures are required. These pressures can only be reliably achieved in special steel containers known as autoclaves.

Atomic absorption spectroscopy

With the help of atomic absorption spectroscopy (AAS), the slightest traces of elements such as iron, copper and zinc can be precisely measured in raw materials and finished goods. Metal contaminants like these could easily have a negative impact on the properties of our finished products. This makes AAS analysis an important part of our quality assurance.

Atomic absorption spectroscopy

With the help of atomic absorption spectroscopy (AAS), the slightest traces of elements such as iron, copper and zinc can be precisely measured in raw materials and finished goods. Metal contaminants like these could easily have a negative impact on the properties of our finished products. This makes AAS analysis an important part of our quality assurance.

High-pressure liquid chromatography

High-pressure liquid chromatography (HPLC) allows us to precisely analyze products and mixtures. We are able to quickly determine the type and quantity of by-products in raw materials as well as the type and quantity of corrosion inhibitors in finished products with this method. The main areas of application beyond research and development include quality assurance for raw materials and finished products in addition to value-added services for our customers.

High-pressure liquid chromatography

High-pressure liquid chromatography (HPLC) allows us to precisely analyze products and mixtures. We are able to quickly determine the type and quantity of by-products in raw materials as well as the type and quantity of corrosion inhibitors in finished products with this method. The main areas of application beyond research and development include quality assurance for raw materials and finished products in addition to value-added services for our customers.

Gas chromatography

Similar to high-pressure liquid chromatography (HPLC), gas chromatography (GC) is normally used to analyze the composition of vaporizable liquids. In this manner, we are able to determine the purity, type, and quantity of the various by-products and impurities in our raw materials.

QUALITY & SUSTAINABILITY

Quality and sustainability: Tested and certified.

HAERTOL works according to the quality standard of the norm DIN ISO 9001:2015 and is certified as an automotive supplier as per ISO/TS 16949:2016.

We have a commitment to sustainability and protecting the environment and have had our environmental management certified in accordance with ISO 14001:2015.

CUSTOMER-SPECIFIC ANALYSIS

Chemical-technical product analysis: Your external expertise.

Do you require independent expertise for examination of your products?

We would be happy to serve you as an external lab for chemical-technical analyses.