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Weathering and radiation : DIN EN ISO 4892-2
To simulate several years of use outdoors , the marking materials are exposed to cyclical stresses through UV radiation and humidity . In this way , artificial weathering can be created , which provides an insight into the mechanical properties and the appearance of a material .
Chemical resistance : DIN EN ISO 175
Liquid oils and chemicals can trigger physical or chemical reactions that have a negative impact on the base material . Both the mechanical properties of a plastic and the durability of the marking can be affected . Tested materials withstand these influences .
Wipe resistance : DIN EN ISO 61010-1 and DIN EN 62208
To ensure the wipe resistance of markings in an industrial environment , the markings undergo a test with isopropanol , n-hexane , and petroleum ether . A cloth is soaked in the respective chemical and wiped over the marking material with a defined force for 30 s . After the test , the marking must still be clearly legible .
Condensation changing climate : DIN 50018
To test the resistance of the materials to corrosion damage , they are exposed to a condensation changing climate with a sulfur dioxide atmosphere at + 40 ° C . An acidic atmosphere forms during the test . Finally , a microscopic visual inspection of the materials is performed .
Salt spray : IEC 60068-2-11 / -52
Particularly in shipbuilding and in offshore applications , the markings must withstand corrosive atmospheres containing salt . To ensure this can be achieved , the resistance of the materials is tested through salt spray in a corrosive atmosphere . A visual inspection is performed after the test .
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