What is the purpose of the Kesternich corrosion test?
The Kesternich corrosion test from the GHygrocellSO2 Galli chamber, allows the simulation of polluted industrial or urban atmospheres through the formation of an artificial atmosphere with the addition of sulfur dioxide, with or without carbon dioxide.
What changes the test in Kesternich chamber from a test in Salt Spray or Humidity chamber?
The Kesternich test takes place practically in the condensation mode that we can probably reproduce also in a Humidostatic chamber, like the GHygrocell Galli, or in a corrosion salt spray chamber, like the Corrotest Galli, the substantial difference is in the composition of the corrosive atmosphere .
What is the peculiarity of the corrosion chamber of Kesternich GHygrocellSO2 Galli?
First of all, the construction completely made of plastic materials and others, however, resistant to the corrosive environment. Its geometry has also been designed to comply with international regulations and standards. The GHygrocellSO2 chamber is supplied complete with 4 support bars and 2 standard specimen racks. Other accessories can be requested and made “ad hoc” depending on the specific needs of the customer.
What are the classic types of proof of the Kesternich Galli chamber?
Tests with a constant atmosphere and high humidity, close to saturation, in order to have condensation directly on the specimens and thus simulate the phenomenon of dew.
Phase with humidity saturated environment of SO2 Gas, Sulfur Dioxide.
Phase at room temperature combined with standard ambient atmosphere, through automatic ventilation of the test compartment.
Cyclic Tests, the resistance to cyclic tests increasingly assumes a fundamental role in the study of corrosion phenomena.
The Galli GHygrocellSO2 model is equipped with a programmable control system where work cycles can be set by alternating the various phases. Example of cycle: 8h with SO2 at + 40 ° C alternating with 16h with Atmosphere and Ambient Temperature.
The GHygrocellSO2 corrosion cell to which standards is compliant?Here is a list of some Reference on National and International Standards, about the study of corrosion phenomena:
UNI EN ISO 6988
Metal coatings and other non-organic coatings – Test with sulfur dioxide with general moisture condensation.
The standard specifies a method for assessing the corrosion resistance of materials or products to an atmosphere containing condensed moisture and sulfur dioxide. The method was found suitable for evaluating metallic coatings and other non-organic coatings.Metallic and other non organic coatings – Sulfur dioxide test with general condensation of moisture.
Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus
Standard Practice for Testing Water Resistance of Coatings in 100% Relative Humidity
ATMOSPHERES AND THEIR TECHNICAL APPLICATION; CONDENSATION WATER TEST.
Paints And Varnishes – Additional Terms And Definitions To Din En Iso 4618
Paints And Varnishes – Coatings For Nuclear Facilities – Part 1: Requirements And Test Methods
ATMOSPHERES AND THEIR TECHNICAL APPLICATION; CONDENSATION WATER TEST ATMOSPHERES
Testing in a saturated atmosphere in the presence of sulfur dioxide
Testing of colouring materials in plastics; determination of the resistance of colouring materials to sulphur dioxide.
Paints and varnishes – Determination of resistance to humidity (intermittent condensation)
Paints and varnishes – Determination of resistance to humidity
Metallic and other non-organic coatings – Corrodkote corrosion test (CORR test)
Specifies the reagent, the apparatus and the procedure for assessment of the quality of metallic and related coatings by the Corrodkode procedure. The method is primarily applicable to copper-nickel-chromium or nickel-chromium electroplated parts.
Paints and varnishes – Determination of resistance to humid atmospheres containing sulfur dioxide.
The principle of the procedure specified is to expose a coated test panel to specified humid atmospheres containing sulfur dioxide. A volume of 0,2 litre, measured at atmospheric pressure, is generally recommended for testing coatings of thickness not exceeding approximately 40 µm. The effects of exposure are evaluated by criteria agreed in advance between the interested parties, these criteria being usually of a subjective nature. Applies to single-coat film or a multi-coat system of paints.
Paints And Varnishes – Determination Of Resistance To Humidity – Part 1: Continuous Condensation
NFT 30-077Peintures et vernis. Détermination de la résistance à l’humidité (par condensation continue).
La présente Norme internationale spécifie une méthode de détermination de la résistance d’un feuil de peinture, de systèmes de peinture et de produits assimilés à des conditions de forte humidité. La méthode est applicable aux revêtements aussi bien sur subjectiles poreux, tels que le bois, le plâtre et les plaques de plâtre, que sur subjectiles non poreux, tels que le métal. Elle donne une indication sur la performance susceptible d’être obtenue dans des conditions sévères d’exposition et lorsqu’une condensation continue se produit à la surface. Le mode opératoire peut faire apparaître des défectuosités du revêtement (comprenant cloquage, tachage, ramollissement, frisage, fragilisation) et une détérioration du subjectile.
Vehicle Paint in Condensed Water Climates.
This test standard is based upon test standard DIN 50 017. Please see elsewhere in this document for details of DIN 50 017.
Accelerated corrosion test. This standard defines an accelerated corrosion test method to be used in assessing the corrosion resistance of metals in environments where there is a significant influence of chloride ions, mainly as sodium chloride from a marine source or by winter road deicing salt.
SFW 2,0 S
Please see details into the original doc.