International Standards Organization, ISO 9001 flag. Blue ISO 9001 flag made of flag quality 200 denier nylon. Printed and or Acid Dyed and finished with a polyester header and brass grommets. All ISO 9001 flags have 4 rows for lock-stitching on fly end. These ISO 9001 flags are appropriate for outdoor use. Blue ISO 14001 flags available in 3’x5′ size only.