TAPPI UM 554 2010

A TAPPI Useful Method for measuring polystyrene content in paper products using ultraviolet and gravimetric procedures.

TAPPI UM 554 provides practical procedures for determining polystyrene in paper products across a wide range of concentrations. The document covers ultraviolet spectrophotometric and gravimetric methods, required apparatus and reagents, sample preparation, chloroform extraction, calculations, reporting requirements, precision information, safety precautions, and comparative method data. The ultraviolet method is presented as the preferred approach for rapid and sensitive analysis, while the gravimetric method provides a semiquantitative alternative for applicable formulations.

Application Scope: Quality control, laboratory analysis, research, and process evaluation involving polystyrene-modified paper, paperboard, and related paper products.