Machine direction of paper and paperboard, TAPPI/ANSI Test Method T 409 sp-23


This Standard Practice 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.  However, the extent of restraint used in drying can be very important in determining machine direction.

 
T 409 sp-23
Machine direction of paper and paperboard, TAPPI/ANSI Test Method T 409 sp-23
Standard price: 57.00
Discounted price: 38.00
57.00

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