Salt Spray Test Cabinet

EN ISO 9227 / ASTM B117 / ASTM B368 / ASTM G85 / MIL STD 810 H

The Salt Spray Test is a standard testing method used to determine the corrosion resistance of coated samples.

Metals such as steel, galvanized steel, aluminum, and alloys are coated to provide corrosion resistance for their intended lifespan. Since the coatings are designed to protect the parts over their expected service life, it is important to assess their performance.

The test methods involve accelerated corrosion tests, subjecting the samples to abrasive attacks to evaluate the protective durability of the coatings. After being exposed to the conditions within the cabinet for a specific period, the appearance of corrosion (oxidation) on the samples is evaluated. The test duration is determined by the corrosion resistance of the coating; the more resistant the coating is to corrosion, the longer it will take before any signs of corrosion are observed.

• • A widely used, cost-effective, fast, well-standardized, and reproducible method.

The test chamber typically consists of a closed environment where a nozzle is used to atomize a salt solution (usually 5% sodium chloride solution) into a chamber maintained at a temperature of 35°C. Inside the chamber, the dense salt mist creates a corrosive environment, subjecting the samples to severe corrosive conditions.

EN ISO 9227 / ASTM B117: Neutral Salt Spray Resistance Test

Test specimens are continuously exposed to the salt mist environment with a 5% concentration of sodium chloride at 35 ± 2°C for the desired duration.

TS EN ISO 9227 / ASTM G85: Acetic Acid Salt Spray Resistance Test

In a chamber at 35 ± 2°C, a saltwater solution with a 5% concentration of sodium chloride is continuously sprayed onto the test samples. The pH of the solution is adjusted between 3.1 and 3.3 using acetic acid for the required test duration.

EN ISO 9227 / ASTM B368: Copper-Accelerated Acetic Acid Salt Spray Resistance Test

This test is used to examine the effects on the surface when the sample is exposed to polluted atmospheric conditions.

Test specimens are exposed in a chamber at 50 ± 2°C. The test solution consists of a 5% concentration of copper(II) chloride dehydrate, with the pH adjusted between 3.1 and 3.3 using acetic acid.