ISO 16750-5 defines the chemical stresses that can influence the electrical and electronic systems of a car. The analysed electronic components are located on or in the vehicle, either in the engine compartment, passenger compartment, luggage compartment or exterior of the vehicle. The standard specifies the test media, the possible coating applications, the time and temperature of exposure to the medium, cleaning of the samples after exposure and evaluation against the given standard requirements.

The purpose of the test is to determine whether temporary exposure to specific chemical agents affects the sample component.

All components that come into contact with chemical agents should be resistant to these agents. After the exposure to each medium, an evaluation of the sample shall be performed. A material is resistant to chemical agents if there is no visual or surface change on the components.

We test for media resistance on metal, plastic and composite products as well as on synthetic leather, textile and glass.

Examples of media used:

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

• cleaning agents,
• abrasives,
• petroleum derivatives,
• car shampoos,
• cosmetic preparations,
• food products,
• artificial sweat, tree resin, bird drop, …

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 in liquids other than water
• ISO 2812-2: Water immersion method
• ISO 2812-3: Method using an absorbent medium
• ISO 2812-4: Spotting method

You are invited to read a case study of how different cleaning agents affect ABS material.

We are available for additional questions and information:
Marjetka Lotrič, Head of sales – testing department
E: marjetka.lotric@lotric.si
M: +386 (0)31 640 252