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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Bonding Lightweight Boards, 2005 Corrugated Packaging Conference

Bonding Lightweight Boards, 2005 Corrugated Packaging Conference

Effect of Drying Conditions on the Development of Binder Strength in Double Coated SBS Paperboard

Effect of Drying Conditions on the Development of Binder Strength in Double Coated SBS Paperboard

Key Attributes and Opportunities of Multilayer Curtain Coating for Paper, 2005 TAPPI Coating Conference

Key Attributes and Opportunities of Multilayer Curtain Coating for Paper, 2005 TAPPI Coating Conference

TMDLs for Mercury: Common Issues With Other PBTs, 2005 Engineering, Pulping & Environmental Conference

TMDLs for Mercury: Common Issues With Other PBTs, 2005 Engineering, Pulping & Environmental Conference

Energy Safe Procedures, 2005 Corrugated Packaging Conference

Energy Safe Procedures, 2005 Corrugated Packaging Conference

Improving Profitability With New Surface Coating and Laser Engraving Technologies, 2005 Corrugated Packaging Conference

Improving Profitability With New Surface Coating and Laser Engraving Technologies, 2005 Corrugated Packaging Conference

Troubleshooting Mill Operations: Bleaching, 2005 Engineering, Pulping & Environmental Conference

Troubleshooting Mill Operations: Bleaching, 2005 Engineering, Pulping & Environmental Conference

Effect of Pigment Properties on Coating Structure as Measured by AFM, 2005 TAPPI Coating Conference

Effect of Pigment Properties on Coating Structure as Measured by AFM, 2005 TAPPI Coating Conference

Print Mottle Reduction Through Clay Engineering and Pore Structuring in Paper Coating, 2005 Coating Conference

Print Mottle Reduction Through Clay Engineering and Pore Structuring in Paper Coating, 2005 Coating Conference

Bobst Polyjoiner, 2005 Corrugated Packaging Conference

Bobst Polyjoiner, 2005 Corrugated Packaging Conference

The Impact of Pore Network Structure on the Absorption of Inkjet Inks, 2005 TAPPI Coating Conference

The Impact of Pore Network Structure on the Absorption of Inkjet Inks, 2005 TAPPI Coating Conference

The Precise System Chamber Blade, 2005 Corrugated Packaging Conference

The Precise System Chamber Blade, 2005 Corrugated Packaging Conference

Reflectometry and Polarized Light for Studies of Paper Coating Structure, 2005 TAPPI Coating Conference

Reflectometry and Polarized Light for Studies of Paper Coating Structure, 2005 TAPPI Coating Conference

Hardy Instruments: Tension Control System, 2005 Corrugated Packaging Conference

Hardy Instruments: Tension Control System, 2005 Corrugated Packaging Conference

Reshaping Coated Paper Production in N.A. With Film Coating, 2005 TAPPI Coating Conference

Reshaping Coated Paper Production in N.A. With Film Coating, 2005 TAPPI Coating Conference

A Survey of Mills Using Caustic-Saving Extraction Stage Chemistry, 2005 Engineering, Pulping & Environmental Conference

A Survey of Mills Using Caustic-Saving Extraction Stage Chemistry, 2005 Engineering, Pulping & Environmental Conference

Novel Method for Quantitative Starch Penetration Anlysis Through Iodine Staining and Image Analysis of Cross-Sections of Uncoated Paper and Board, 2005 TAPPI Coating Conference

Novel Method for Quantitative Starch Penetration Anlysis Through Iodine Staining and Image Analysis of Cross-Sections of Uncoated Paper and Board, 2005 TAPPI Coating Conference

Quality Performance Using Increased Moisture Content at the Reel with Woodfree Coatings, 2005 TAPPI Coating Conference

Quality Performance Using Increased Moisture Content at the Reel with Woodfree Coatings, 2005 TAPPI Coating Conference

Two Different Fiberlines, 2005 Engineering, Pulping & Environmental Conference

Two Different Fiberlines, 2005 Engineering, Pulping & Environmental Conference

Tack and Gloss Dynamics of Double Coated Samples, 2005 Coating Conference

Tack and Gloss Dynamics of Double Coated Samples, 2005 Coating Conference