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

Improve Quality and Reduce Cost-How to be Successful With Online Charge Measurement & Control, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Improve Quality and Reduce Cost-How to be Successful With Online Charge Measurement & Control, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Thin Film Printed Electronics on Paper Substrates

Thin Film Printed Electronics on Paper Substrates

Global Paper Machine Efficiency Standard, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Global Paper Machine Efficiency Standard, 2007 TAPPI Papermakers and PIMA International Leadership Conference

The Suitability of Douglas Fir (Pseudotsuga Menziesli) Logs From Early Thinnings in Stone Groundwood Mechanical Pulping Operations for Supercalandered Magazine Paper Grades, 2007 International Mechani

The Suitability of Douglas Fir (Pseudotsuga Menziesli) Logs From Early Thinnings in Stone Groundwood Mechanical Pulping Operations for Supercalandered Magazine Paper Grades, 2007 International Mechanical Pulping Conference

New Press Section Optimizing & Troubleshooting Technique, 2007 TAPPI Papermakers and PIMA International Leadership Conference

New Press Section Optimizing & Troubleshooting Technique, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Nanoscale Diffusion and Transport Properties of Cellulosic Fibrous Materials, 2007 International Conference on Nanotechnology for the Forest Products Industry

Nanoscale Diffusion and Transport Properties of Cellulosic Fibrous Materials, 2007 International Conference on Nanotechnology for the Forest Products Industry

Using DNA to Prevent Counterfeiting and Product Diversion, 2007 PLACE Conference

Using DNA to Prevent Counterfeiting and Product Diversion, 2007 PLACE Conference

Ultrastructural Characterization fo Stone Groundwood (SGW) Fibre Development Provides Insights on Derived Pulp Properties, 2007 International Mechanical Pulping Conference

Ultrastructural Characterization fo Stone Groundwood (SGW) Fibre Development Provides Insights on Derived Pulp Properties, 2007 International Mechanical Pulping Conference

On the Application of Grinding and Thermomechanical Pulp Refining, 2007 International Mechanical Pulping Conference

On the Application of Grinding and Thermomechanical Pulp Refining, 2007 International Mechanical Pulping Conference

The Effect of Extractives on the Disruptive Shear Stress of Pine Thermomechanical Pulps, 2007 International Mechanical Pulping Conference

The Effect of Extractives on the Disruptive Shear Stress of Pine Thermomechanical Pulps, 2007 International Mechanical Pulping Conference

Reducing Variability in Maintenance Workload, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Reducing Variability in Maintenance Workload, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Fitting Polymers to the Demands of the Wet End: A Subtle Balance of Interactions at the Nanoscale, 2007 International Conference on Nanotechnology for the Forest Products Industry

Fitting Polymers to the Demands of the Wet End: A Subtle Balance of Interactions at the Nanoscale, 2007 International Conference on Nanotechnology for the Forest Products Industry

One-Side Clear Active Barrier Packaging for Moisture Sensitive Medical Devices, 2007 PLACE Conference

One-Side Clear Active Barrier Packaging for Moisture Sensitive Medical Devices, 2007 PLACE Conference

Minimizing Deposition in the Papermaking System with Mechanical and Recycled Pulps, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Minimizing Deposition in the Papermaking System with Mechanical and Recycled Pulps, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Field Experience with Dilution Profiling Retrofits Using the Radial Distributor Style of Flow Spreader, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Field Experience with Dilution Profiling Retrofits Using the Radial Distributor Style of Flow Spreader, 2007 TAPPI Papermakers and PIMA International Leadership Conference

UNDERSTANDING WHY ADHESION IN EXTRUSION COATING DECREASES WITH DIMINISHING COATING THICKNESS, PART III: ANALYSIS OF PEEL TEST, 2007 PLACE Conference

UNDERSTANDING WHY ADHESION IN EXTRUSION COATING DECREASES WITH DIMINISHING COATING THICKNESS, PART III: ANALYSIS OF PEEL TEST, 2007 PLACE Conference

Some of the Important Design Requirements of a Machine Direction Orientor (MDO) Machine, 2007 PLACE Conference

Some of the Important Design Requirements of a Machine Direction Orientor (MDO) Machine, 2007 PLACE Conference

HACCP-Have You Checked Your Hazard Analysis Lately?, 2007 PLACE Conference

HACCP-Have You Checked Your Hazard Analysis Lately?, 2007 PLACE Conference

A NOVEL NUCLEATING AGENT FOR POLYETHYLENE, 2007 PLACE Conference

A NOVEL NUCLEATING AGENT FOR POLYETHYLENE, 2007 PLACE Conference