The “Volvo STD 422-0006 Resistance to short-term contact with liquids” standard developed by the Volvo vehicle company describes a test method for evaluating the effects of splashes and similar effects of various fluids on plastic and rubber parts. This standard replaced the Renault D47 1924 standard developed by the French automobile company Renault.
This testing method involves bringing various fluids into contact with parts that may occasionally come into contact with the fluids for a certain period of time and at a constant temperature, and observing the resulting cracking, swelling, dissolution and similar changes.
Test conditions such as temperature and contact time vary depending on:
Volvo STD 422-0006 standard includes two test procedures:
If Method A is applied, whenever possible the tests are carried out on a piece or sample cut from a part of the product. If Method B is applied, tests on materials are performed on test pieces.
In general, these tests are performed in areas subject to large stress concentrations. Tests are carried out at the attachment points of the fasteners, if any. Screws and nuts are placed and torqued to the value specified in the functional drawing. If there are no tie points, testing is done at the injection point or high shear area. If the parts are produced by the extrusion-blowing method, test pieces are taken and processed perpendicular to the extrusion.
Both Method A and Method B include the following processes:
While evaluating the results, it is visually checked for any changes in appearance, cracks, tears, swelling, partial dissolution or similar situations.
Once the tests are completed, the report prepared includes the following information:
Components used in industrial processes must be resistant to the process environments they come into contact with in this process. These mainly include lubricants, cleaning agents, acids, alkalis, solvents and gases. This resistance is determined by testing specific aging and related properties before and after aging in laboratory environments. One of the standards considered for testing the chemical resistance in question is the Volvo STD 422-0006 standard.
Briefly, through these tests, the resistance of plastic and rubber materials is evaluated by short-term exposure to various liquids.
Among the numerous testing, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides testing services in accordance with the "Volvo STD 422-0006 Resistance to short-term contact with liquids" standard, with a trained and expert staff and advanced technological equipment.
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