BS 6538-1 85th Edition, January 31, 1985
Air Permeance of Paper and Board Part 1: Method for Determination of Air Permeance: General Aspects of Testing
Includes all amendments and changes through Reaffirmation Notice , September 15, 1995
Additional Comments: SAME AS ISO 5636-1
Published By:British Standards Institution (BSI)
Specifies the basic requirements for apparatus and general operating procedures for determining the air permeance of paper and board in the medium air permeance range.