About this document
TAPPI/ANSI T 437 Om-12: 1. Scope by Steffany Silva is a document available to read on EtoBox.
This document provides the scope, definitions, significance, apparatus, test specimens, and procedures for determining the amount of dirt in paper and paperboard using the TAPPI Dirt Estimation Chart method. The method involves visually comparing dirt specks observed on paper samples to round black spots of various predefined areas on the TAPPI Dirt Estimation Chart to estimate the equivalent black area of each speck. The total equivalent black area is then used to determine the amount of dirt in the sample
- Author
- Steffany Silva
- Language
- EN