BS 5811 is an obsolete method.

ISO 12945-1 is the replacement standard.

The BS 5811 standard reference photographs can continue to be used to aid assessment.

They can be purchased from James Heal:


766-461 M & S and BS 5811 : 1979 "Woven" Standard Photographs
766-462 M & S "Knitted" Standard Photographs
766-463 BS 5811 : 1979 "Single Jersey" Standard Photographs
766-464 BS 5811 : 1979 "Double Jersey" Standard Photographs


Alternatively, these photographic standards along with those in the list below are available electronically on James Heal ProView.


901-475 ProView Universal Assessment Viewer
Preloaded with the following images - "Photographic References":
ASTM D3939 Mace Snagging (9 images)
BS 8479 SnagPod
BS 5811:1979 and M&S - Woven (5 images)
BS 5811:1979 - Single jersey (5 images)
BS 5811:1979 - Double jersey (5 images)
SM50 for woven fabrics - Martindale (20 images)
SM54 for knitted fabrics - Pilling box (20 images)
EMPA Digital Photographic Standards - Full set (3 x 4 Woven & 3 x 4 Knitted) *
*Used under licence from EMPA


For diagrams and images, please download the PDF document.