Charts & Datasets

TAPPI has a solution for dirt -- the kind that gets into your products during the manufacturing or shipping process.  

TAPPI’s Dirt Chart cards estimate the equivalent black area (EBA) of dirt or other colored specks. The equivalent black area of a dirt speck is defined as the area of a round black spot on the white background of the TAPPI Dirt Estimation Chart that makes the same visual impression as the dirt speck on the material in which it is embedded. Dirt Estimation Charts are manufactured from an original negative on Kodak photographic paper. The paper positive is produced in a NuArc contacting frame with an Olite light source and Olix light integrator. The light integrator precisely controls the exposure. Each piece of photographic paper that is produced during the manufacturing process is evaluated with an X-Rite densitometer for correct exposure.

To ensure the accuracy of the charts, each piece is measured by examining the .20 dot with a 100 x magnifier that has a reticle (scale) incremented in 5/10,000 mm on the lens. This opaque chart can be used with TAPPI Test Methods  T 213T 437, and  T 537.  

You want to hear more? Check out TAPPI’s size estimation chart (for use with Test Method  T 564). Developed from the TAPPI Dirt Estimation Chart, this transparency is used to measure the size of spots, defects, or inclusions over the range of 0.02 to 5.00 square millimeters in paper and other industrial materials such as textiles or plastics.  

The TAPPI Calibrated Size Estimation Chart is a great solution for quality control applications where exact dimension specifications are required. Each Calibrated SEC comes with its own data sheet that provides an actual dot measurement area (expressed in squared mm) to correspond with the increments (dots) on the chart.

Dirt Estimation Chart  (Opaque) 
Product Code: 0109DIRT 
Member Price: $41               
Non-Member Price: $58 

Size Estimation Chart  (Transparency) 
Product Code: 0109DIRTT 
Member Price: $57               
Non-Member Price: $82

Calibrated Size Estimation Chart  (Transparency)

Product Code: 0109DIRTCAL 
Member Price: $300 
Non-Member Price: $350

 

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Manual de Defectos/Remedios en la Corrugacion, Sexta Edicion

Manual de Defectos/Remedios en la Corrugacion, Sexta Edicion

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Standards
Develop Standards Methods

TAPPI Standards, Technical Information Papers (TIPS) and Useful MethodsAre you interested in reviewing or submitting TAPPI Standards, TIPs or Useful Methods? There are many ways to get involved at various levels of commitment. You

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Elemental Chlorine Free Bleaching: A TAPPI PRESS Anthology of Published Papers

Elemental Chlorine Free Bleaching: A TAPPI PRESS Anthology of Published Papers

Test

Test.

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Indices for whiteness, yellowness, brightness, and luminous reflectance factor, Test Method TAPPI/ANSI T 1216 sp-12

Indices for whiteness, yellowness, brightness, and luminous reflectance factor, Test Method TAPPI/ANSI T 1216 sp-12

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Pulp & Paper Energy Best Practices Guidebook

Pulp & Paper Energy Best Practices Guidebook

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Corrugator Roll Wear Measurement

Corrugator Roll Wear Measurement

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Optical measurements terminology (related to appearance eval, Standard Glossary TAPPI/ANSI T 1500 gl-12

Optical measurements terminology (related to appearance eval, Standard Glossary TAPPI/ANSI T 1500 gl-12

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Chemical Recovery in the Alkaline Pulping Processes Revised Edition

Chemical Recovery in the Alkaline Pulping Processes Revised Edition

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The Ultimate Roll and Web Defect Troubleshooting Guide

The Ultimate Roll and Web Defect Troubleshooting Guide

Operating Experiences at Goricane Paper Mill, Medvode, Slovenia, 2000 Metered Size Press Forum

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Retention of Fines and Fillers During Papermaking

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Pigments for Paper

Pigments for Paper

About TAPPI

The Power of TAPPI Membership. In 1915, thirty enterprising papermakers gathered together determined to form a new technical arm of the American Paper & Pulp Association (APPA). Their idea was to gather and disseminate information concerning matters which

How do I access My eLearning

How to ACCESS your eLearning Purchases

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Pulp Bleaching: Principles and Practice

Pulp Bleaching: Principles and Practice

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Loss on ignition of fiber glass mats , Test Method TAPPI/ANSI T 1013 om-15

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Standards
Moisture sensitivity of fiber glass mats, Test Method TAPPI/ANSI T 1014 om-10

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Technical Needs, The: Nonwovens for Medical/Surgical and Consumer Uses

Technical Needs, The: Nonwovens for Medical/Surgical and Consumer Uses