Tests for general, structural, mechanical and functional properties of laboratory, high efficiency air, automotive and industrial filter papers and filter papers for diagnostic applications.Cross References:BS 907BS 2071BS 2823BS 2922:Part 1 BS 2922:Part 2BS 2924:Part 1BS 2924:Part 2 BS 2924:Part 3BS 2924:Part 4BS 3137BS 3321BS 3430BS 3431BS 3432BS 3433BS 3631BS 3748BS 3983BS 4400 BS 4415:Part 2BS 4468BS 4497BS 4499 BS 4897:Part 1BS 4897:Part 2BS 4897:Part 3 BS 4897:Part 4BS 6504BS 6538:Part 3ISO 5628ASTM D2986ASTM F316ASTM F795ASTM F796Tappi Method T461 om-84Tappi Method T535 cm-85Tappi Method T543 pm-84Health and Safety at Work etc. Act 1974