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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".


Corrosion protection
Curing in process
Conveyor belt oven (continuous oven)
Tray oven (continuos oven)
Chain conveyor oven
Chamber oven
Drying process
Cooling (after annealing)
Exhaust air treatment
KTL breakdown voltage
Condensed water test according to DIN EN ISO 6270-2
Sacrificial anode
Local element
Surface protection
Hot-dip galvanising
Flame spraying
Galvanic coating
Conversion layer
Dry-film coat thickness
Fastening properties
Gloss level
Artificial weathering test
Test procedures
Surface properties
Chemical resistance
Mechanical resistance
Natural weathering test
Physical properties
Passiveness, passive state
Protection, galvanic
Protection, temporary
Chromate Coating
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Rack coating
Bulk process
Partial production lot
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Erichsen ball recess
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Contact corrosion
Bimetallic corrosion
Stress corrosion cracking
Hydrogen induced cracking
ISO 9001
Electro-dip painting (ETL)
Electrostatic powder spraying (EPS)
ISO 14001
Trueness of gauge
Coefficient of friction
Setting behaviour
Fastening and assembly
Kesternich test
Material effectiveness
Environmental management
Quality management
Magnetic induction measurement
Scaling protection
Powder coating
Coil coating
X-ray fluorescence analysis
Beta backscatter method
Mandrel bend test
Eddy current method (phase sensitive)
Eddy current method (amplitude sensitive)
Corrosion College
Powder sintering process
Zinc flake coatings
Dip coating process
Stone impact test
Process stages of KTL-seperation
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!