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TAPPI T 564 sp-11
- Transparent Chart for the Estimation of Defect Size
- standard by Technical Association of the Pulp and Paper Industry, 06/01/2011
- Publisher: TAPPI
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There are many applications when it is desired to measure the size of spots, defects or inclusions in paper and other industrial materials such as textiles or plastics. This test method was developed from the TAPPI Dirt Estimation Chart to provide a means for size estimation.PLEASE NOTE: This document describes the recommended practice for use of the estimation chart; this is not the actual chart.