Vulcanized fibre for electrical purposes - Specifications for individual materials. Sheet 1. Flat sheets Ingestion-build-232773 c) as a perception test

c) as a perception test

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BS 4636-3 specifies punching the twelve available positions of a given column of a punched card in the following way: positions 12

Vulcanized fibre for electrical purposes - Specifications for individual materials. Sheet 1. Flat sheets Ingestion-build-232773 c) as a perception test1 Scope This part of IEC 60667 gives requirements for vulcanized fibre sheets for electrical purposes. Materials made by combining with an adhesive several thicknesses of vulcanized fibre are not covered by this document. Materials that conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application is based on the actual requirements necessary for adequate performance in