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TAPPI/ANSI T 220 sp-21
Physical testing of pulp handsheets
1.1 This procedure describes the testing of pulp handsheets, prepared in accordance with TAPPI T 205 "Forming Handsheets for Physical Tests of Pulp," for their strength and other physical properties as well as their lightscattering coefficient.
1.2 Information derived from handsheet testing is a measure of the potential contribution of the pulp to the strength of the finished paper product.
Technical Association of the Pulp and Paper Industry [tappi]