Have you ever wondered how motor oil, sunscreen residues, or cleaning agents affect the materials in your vehicle?

ISO 16750-5 defines chemical stresses that may impact a vehicle’s electrical and electronic systems — from the engine compartment to the interior and exterior. It precisely specifies test media, application methods, and exposure conditions (time, temperature, and cleaning), tailored to the standard or customer requirements.

This test evaluates whether short-term exposure to specific chemicals affects a material or product. After exposure, samples are assessed: a material is considered resistant if no visible surface changes are observed after testing.

We perform media resistance tests on metal, plastic, composite materials, artificial leather, textiles, and glass.

Examples of media used:

• oils and greases,
• liquid and deionized water,
• brake fluid,
• hydraulic fluid,
• antifreeze fluids,
• a wide range of organic solvents,
• inorganic acids and bases,

• cleaning agents,
• abrasive substances,
• petroleum derivatives,
• car shampoos,
• cosmetic preparations (hand cream, sunscreen),
• food products,
• artificial sweat, tree resin, bird droppings, …

Specific automotive standards for determining the durability and resistance of materials:

• ISO 16750-5
• ISO 105-X12:2016
• VW 80000, C-01 Chemical tests
• VW 96238 according to PTL 8140:2020-02
• MBN 10306, C-01 Chemical tests
• MBN 10494-7:2016

• DBL 5416:2017
• Magna Steyr standard N10 186:2013
• MS210-05:2016
• MS 633-01:2017-12-08
• NF 076-01:2018

Specific standards for the determination of resistance to liquids for components protected by paints and varnishes:

• ISO 2812-1: Immersion method for liquids other than water
• ISO 2812-2: Water immersion method
• ISO 2812-3: Method using an absorbent medium
• ISO 2812-4: Droplet method

For Further Questions and Information, Contact Us:
Marjetka Lotrič, Head of sales – testing department
E: marjetka.lotric@lotric.si
M: +386 (0)31 640 252