Paper and board. Determination of air permeance (medium range) - Sheffield method Ingestion-build-183098 These examples are also intended

These examples are also intended to:

The aim is to enable users to maintain the authenticity and integrity of the ESI

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

those types of record and document which are the subject of separate British Standards should comply with them: for example BS 2509

how the design needs to be modified

Paper and board. Determination of air permeance (medium range) - Sheffield method Ingestion-build-183098 These examples are also intended1 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.