UNE 49 401 h11
Technical characteristics of packaging paper and test methods for porosity and air permeability

Standard No.

UNE 49 401 h11

Release Date

2008

Published By

ES-AENOR

Scope

The purpose of this standard is to establish a procedure to determine the porosity or air permeability of a paper, that is, the volume of air that passes through 1 cm! of the paper, at a determined and constant pressure, for a specified time.