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TAPPI T230 om-13
- Viscosity of Pulp (Capillary Viscometer Method)
- standard by Technical Association of the Pulp and Paper Industry, 05/01/2013
- Publisher: TAPPI
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This method describes a procedure for determining the viscosity of 0.5% cellulose solutions, using 0.5M cupriethylenediamine (CED) as a solvent and a capillary viscometer. Measurements may be made on bleached cotton and wood pulps. Conventional kraft pulps with up to 4% lignin, as defined by TAPPI T222 "Acid-Insoluble Lignin in Wood and Pulp" can also be analyzed. The applicability of this procedure to extended delignification pulps has not been determined.