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Kesternich test

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Kesternich test

The Kesternich test was developed in 1951 by Wilhelm Kesternich to simulate the damaging effects and the corrosive influence of acid rain.

 

How does the Kesternich test work? The parts to be tested are placed in a 300 litre chamber. Then, depending on the requirements, they are exposed to warm and humid air with a certain proportion of sulphur dioxide (AHT 1.0 S with 0.33 % volume SO2 or AHT 2.0 S with 0.67 % volume SO2). The test is carried out in cycles of 24 hours each and is divided into two sections:

 

Test section 1: 8 hours warm-up to 40°C ±3°C (relative humidity 100 %)

Test section 2: 16 hours cooling to 18 to 28°C (relative humidity max. 75 %)

 

The test is completed when the prescribed cycle is reached. With the help of the standardised test, it is possible to determine how dense the surface of the test piece is or what corrosion resistance it exhibits.

 

Today, the test belongs to the group of alternating climate tests and is used, for example, in mechanical engineering, the automotive industry, the electrical industry and the automotive sector for testing both coatings and base materials. The test method is defined and set in detail by the standard "DIN 50018 - Testing in an alternating condensation water climate with an atmosphere containing sulphur dioxide".

 

Glossary

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Overspray-Test
Corrosion protection
Corrosion
Sacrificial anode
Local element
Rust
Surface protection
Burnishing
Hot-dip galvanising
Flame spraying
Galvanic coating
Conversion layer
Sherardising
Substrate
Colouring
Dry-film coat thickness
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Flexibility
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Protection, galvanic
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Chromate Coating
Passivation coating
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Hydrogen induced cracking
ISO 9001
Dip-Draw
Electro-dip painting (ETL)
Electrostatic powder spraying (EPS)
Phosphating
ISO 14001
Trueness of gauge
Dip-Spin
Coefficient of friction
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Kesternich test
Material effectiveness
Environmental management
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EMAS
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Powder coating
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X-ray fluorescence analysis
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Turnover
Corrosion College
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Zinc flake coatings
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Stone impact test
Process stages of KTL-seperation
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Corrosion testing atmospheres conducive corrosion
Coat thickness and coat thickness measurement
Adhesion test according to DIN EN ISO 10683
Cross-cut test for adhesion
Thread tolerance
Pressure water jetting test
Fertiliser resistance
Anodic dip coating (ADC)
Cathodic dip coating (CDC)

Technical terms can not always be avoided. As corrosion experts, we not only want to give you comprehensive advice, we are also interested in making you a corrosion expert yourself.

The variety around the topic of corrosion and corrosion protection is also in our glossary at home: explanations from A as in Adhesion to T as in Thread tolerance. Have fun clicking through!