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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Terry S. Paulson Memorial Scholarship Form

Terry S. Paulson Memorial Scholarship Form

Pilot-Scale Wet Web Surface Treatment of Newsprint, 2000 Metered Size Press Forum

Pilot-Scale Wet Web Surface Treatment of Newsprint, 2000 Metered Size Press Forum

Corrugating Defect/Remedy CD-ROM, Sixth Edition

Corrugating Defect/Remedy CD-ROM, Sixth Edition

Manufacture of One-Sided Coated Speciality Papers on the Metered Size Press, 2000 Metered Size Press Forum

Manufacture of One-Sided Coated Speciality Papers on the Metered Size Press, 2000 Metered Size Press Forum

Standards
Indices for whiteness, yellowness, brightness, and luminous reflectance factor, Test Method T 1216 sp-18

Indices for whiteness, yellowness, brightness, and luminous reflectance factor, Test Method T 1216 sp-18

Books
Process Control Fundamentals for the Pulp and Paper Industry

Process Control Fundamentals for the Pulp and Paper Industry

Books
Flexographic Terms: A Glossary of Terms Used in Flexographic Printing on Corrugated Board

Flexographic Terms: A Glossary of Terms Used in Flexographic Printing on Corrugated Board

Development of the Metering Size Press: A Historical Perspective, 2000 Metered Size Press Forum

Development of the Metering Size Press: A Historical Perspective, 2000 Metered Size Press Forum

Books
High Purity Pulps: Testing, Accessibility and Reactivity

High Purity Pulps: Testing, Accessibility and Reactivity

Books
Retention of Fines and Fillers During Papermaking

Retention of Fines and Fillers During Papermaking

Books
Maintenance Painting of Steel Structures in Pulp and Paper Mills eBook

Maintenance Painting of Steel Structures in Pulp and Paper Mills eBook

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

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

Books
Paper Machine Quality Control Systems - Volume 1: Measurement Systems and Product Variability

Paper Machine Quality Control Systems - Volume 1: Measurement Systems and Product Variability

Books
Productivity Improvements in Rotary Die Cut Stackers

Productivity Improvements in Rotary Die Cut Stackers

Standards
Light sources for evaluating papers including those containing fluorescent whitening agents, Test Method TAPPI/ANSI T 1212 sp-12

Light sources for evaluating papers including those containing fluorescent whitening agents, Test Method TAPPI/ANSI T 1212 sp-12

Standards
Sample location for fiber glass mat sheets, Test Method TAPPI/ANSI T 1007 sp-10

Sample location for fiber glass mat sheets, TAPPI/ANSI Test Method T 1007 sp-15

Books
Language of Business, Volume II

Language of Business, Volume II

Books
Fundamentals of the Kraft Recovery Process

Fundamentals of the Kraft Recovery Process

Manual de Defectos/Remedios en la Corrugacion, Sexta Edicion

Manual de Defectos/Remedios en la Corrugacion, Sexta Edicion

Books
Paper: An Engineered Stochastic Structure

Paper: An Engineered Stochastic Structure