https://yse.yabesh.ir/std/handle/yse/113 2026-05-06T17:56:51Z https://yse.yabesh.ir/std/handle/yse/232230 TAPPI T 218 SP; Forming handsheets for reflectance testing of pulp (Büchner funnel procedure) TAPPI - TAPPI This practice describes the procedure using a B&#252;chner funnel for preparing specimen sheets for reflectance testing of bleached or unbleached pulp whose fibers are readily dispersed in water. The sheets are made at a pH of 6.5 &#177; 0.5. This practice permits the preparation of sheets having a smooth and reproducible surface for reflectance measurements with a minimum of washing or contamination of the sample. <br>This TAPPI Standard Practice differs from other practices used in world trade in the manner in which sheets are pressed and dried. See Appendix. <br>TAPPI Standard Practice T 272 describes a procedure for using the sheet machine for making handsheets for the application. The purpose for having two methods is discussed in sections 4.3 and 4.4. <br>See Appendix for consideration of slow draining pulps and recycled pulps. 2011-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/231436 TAPPI TIP 0304-72; Critical properties to consider when unitizing TAPPI - TAPPI 2008-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/230847 TAPPI T 555 OM; Roughness of paper and paperboard (Print-surf method) TAPPI - TAPPI This method measures the roughness of paper and paperboard under conditions intended to simulate the nip pressures and backing substrates found in printing processes. It is applicable to coated and uncoated papers and paperboards which are intended to be printed by contacting printing processes. The measuring principle, that of determining the resistance to flow or air between the test surface and a metal band in contact with it, is similar to that employed in TAPPI Test Method T 538 om-96 "Roughness of Paper and Paperboard (Sheffield Method)." The major difference between this and other air leak methods is that the metal band dimensions, clamp pressures and composition of the measuring nip are all intended to simulate printing process conditions. 2010-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/229174 TAPPI TIP 0304-15; Statistical Process Control of Starch Viscosity TAPPI - TAPPI 2002-01-01T00:00:00Z