TAPPI T 543 2011 Edition, January 1, 2011
Bending resistance of paper (Gurley-type tester)
This procedure determines the bending resistance of paper, paperboard, and other materials by measuring the force required to bend a specimen under controlled conditions. The instrument described allows for a wide variation in specimen length and width, and in applied force.
This procedure is not recommended for soft or limp materials such as tissue, toweling and newsprint, or for materials with a pronounced degree of curl.