Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having a discrete or oriented permeable zone and materials with bands of differing permeability. Determination of air permeability Ingestion-build-52208 Who is ISO 17638 for

Who is ISO 17638 for

BS EN 61249-2-43 on materials for printed boards is useful for:

brackish waters and marine mud

They are designed to protect apparatus or personnel

It does not standardize the implementation of software or hardware nor preclude any technical solution the ExVe manufacturer might select when designing a new ExVe functionality

Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having a discrete or oriented permeable zone and materials with bands of differing permeability. Determination of air permeability Ingestion-build-52208 Who is ISO 17638 for1 Scope This document specifies a method for the determination of air permeability (AP). It is applicable to materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone or discrete permeable zones where the measured permeability is in excess of 10 cm3(min1cm2) at 1 kPa. In addition, it is applicable to banded cigarette papers, with bands of a width of at least 4 mm. NOTE For an