Paper and board. Determination of air permeance (medium range) - Sheffield method Ingestion-build-183098 and storage and retrieval machines

and storage and retrieval machines

This is a full revision of BS 10008:2014

how the design needs to be modified

Tests are carried out at various tearing energies by varying the strain energy density in the test piece

Paper and board. Determination of air permeance (medium range) - Sheffield method Ingestion-build-183098 and storage and retrieval machines1 Scope This part of ISO 5636 specifies the Sheffield method for determining the air permeance of paper and board using the Sheffield apparatus. It is applicable to papers and boards which have air permeances between 0,02 m (Pas) and 25 m (Pas) when tested with the Sheffield apparatus. It is unsuitable for rough surfaced materials, which cannot be securely clamped to avoid leakage.