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EVS 940:2019

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Burnt shale for production of plastics. Specification and conformity criteria

This Estonian standard applies to heat-treated oil shale or a mixture of this, in which the part of oil shale is at least 70% (hereinafter burned oil shale or BS). Burnt oil shale is used as a plastic filler. Burnt oil shale consists of clinker minerals, free lime, dehydrated calcium sulphate and a melted together mixture of particles of the aforementioned components and is divided into the following product classes on the basis of its finesse: - Plastic BS – F - Plastic BS – M - Plastic BS - C. The standard defines the characteristics of burnt oil shale, the required test methods and the conformity assessment procedures.

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