ISO 5636-5:1986

Paper and board — Determination of air permeance (medium range) — Part 5: Gurley method

Specfies detailed requirements and operating procedures applicable to specific types of apparatus, and is applicable to papers and boards having air permeances between 0,1 and 100 m/(Pa.s), being unsuitable for rough-surface papers such as creped and corrugared papers, which cannot be securely clamped to avoid leakage.