Why a material name alone is not compatibility approval

Technical explanation

Even if the material families are the same, the compound, manufacturing and product geometry may vary. In addition to the resistance of the inner tube, the suitability of seals and metal parts also matters. Chemical charts are based on specific test or evaluation conditions; these conditions must not be made invisible. A food, drinking water or other special-use declaration is a different matter from the material simply not degrading chemically. The product and the use limits covered by the document must be read clearly.

Source: S017, S020, S037

Topic-specific checkpoints

Source: S017, S020, S037

How is it assessed in practice?

In the database, separate the 'material information' and 'product compatibility record' fields. Do not generate an automatic green compatibility mark for a user who selects a material family. In the product evaluation, keep the supplier's response, its conditions and its date. When the fluid changes, keep the previous record and open a new revision. Do not delete a caveat or temperature condition in a product's technical document in order to shorten SEO text. Keep traceable, retrospectively, which data the final decision was based on. Do not select by material name until the product compound, fluid composition and temperature/contact duration have been matched.

Original editorial recommendation; not a clause of a standard.

Frequently asked questions

Is appearing suitable in a material table enough for an order?

It is not enough on its own. Verification is required for the finished assembly and the actual conditions of use.

Source: S017, S020, S037