VDA 675-304 (06/2023)

€120.00
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VDA 675-304 Elastomer-Beständigkeit Bestimmung des Verhaltens gegenüber Bremsflüssigkeiten gemäß ISO 4925 / Elastomer compatibility Determination of the behaviour against brake fluids as per ISO 4925 (06/2023) - Gruppenlizenz (group license), AGB (GTC) Art. 10, 2 - Language of the document German and English

This recommendation defines the test procedure for determining the changes in elastomers due to exposure to brake fluids, which are not based on mineral oil or silicone.

The procedure can be used for the purpose

- to carry out suitability tests on various elastomers and brake fluids that are suitable for such an application (quality determination).

- to carry out comparative tests on different delivery batches of a certain elastomer quality or brake fluid (quality assurance).

The tests are preferably carried out with the standard test specimen described in section 3.1. Taking into account the influence of the specimen shape (thickness, volume, shape factor and others) and the specimen condition (vulcanization skin on all sides or on one side, grinded surface and others), the test can also be carried out on finished parts. Test comparisons can only be made on specimens of the same geometry.

Corrosion behavior - an additional optional corrosion test for relevant brake systems in the interaction of brake fluid - elastomer - metal (corrosion chain: copper, brass, aluminum, etc.) can be recommended in special cases.

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