Historical
T 409 sp-09
Machine direction of paper and paperboard
Describes several procedures for determining the machine direction of most grades of paper and paperboard. Most of the procedures embody the principle that fibers tend to be aligned in the machine direction of the sheet, and this alignment produces observable effects.
CONTENT PROVIDER
Technical Association of the Pulp and Paper Industry [tappi]
Technical Association of the Pulp and Paper Industry [tappi]