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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Useful methods
Laboratory processing of pulp (Kollergang method), Useful Method UM 258 (2010)

Laboratory processing of pulp (Kollergang method), Useful Method UM 258 (2015)

Technical information papers
The edge crush test (ECT): its relationship to box compression and its derivation from containerboard edge stiffness, Technical Information Paper TIP 0304-09 (2014)

The edge crush test (ECT): its relationship to box compression and its derivation from containerboard edge stiffness, Technical Information Paper TIP 0304-09 (2014)

Technical information papers
High density papers -- what are they?, Technical Information Paper TIP 0304-43 (2011)

High density papers -- what are they?, Technical Information Paper TIP 0304-43 (2011)

Standards
Accelerated test for viscosity stability of clay slurries, Test Method T 697 cm-12

Accelerated test for viscosity stability of clay slurries, Test Method T 697 cm-12

Technical information papers
Dandy roll applications, Technical Information Paper TIP 0404-53 (2017)

Dandy roll applications, Technical Information Paper TIP 0404-53 (2017)

Technical information papers
Multiple-out rotary diecut stacking, Technical Information Paper TIP 0305-47 (2011)

Multiple-out rotary diecut stacking, Technical Information Paper TIP 0305-47 (2011)

Standards
Physical area of sub-visible contraries in pulp, paper and paperboard by image analysis, Test Method TAPPI/ANSI T 568 om-12

Physical area of sub-visible contraries in pulp, paper and paperboard by image analysis, Test Method TAPPI/ANSI T 568 om-12

Technical information papers
Sulfite Waste Liquor Concentration, Technical Information Paper TIP 0607-19 (2002)

Sulfite Waste Liquor Concentration, Technical Information Paper TIP 0607-19 (2002)

Standards
Analysis of rosin size, Test Method T 628 cm-10

Analysis of rosin size, Test Method T 628 cm-10

Technical information papers
Paper Test Rooms: Design Considerations, Technical Information Paper TIP 0808-04 (2018)

Paper Test Rooms: Design Considerations, Technical Information Paper TIP 0808-04 (2018)

Technical information papers
Paper machine clothing cleaning and conditioning for recycled fiber use, Technical Information Paper TIP 0404-51 (2013)

Paper machine clothing cleaning and conditioning for recycled fiber use, Technical Information Paper TIP 0404-51 (2013)

Technical information papers
Procedure for Utilizing Statistical Control Techniques to Monitor the Tare Weight of a Run of Boxes, Technical Information Paper TIP 0304-35 (2003)

Procedure for Utilizing Statistical Control Techniques to Monitor the Tare Weight of a Run of Boxes, Technical Information Paper TIP 0304-35 (2003)

Standards
Analysis of soda and sulfate white and green liquors, Test Method T 624 cm-11

Analysis of soda and sulfate white and green liquors, Test Method T 624 cm-11

Mill-scale experiences of extended delignification with Super Batch cooking method, 2002 Kraft Pulp Yield Symposium

Mill-scale experiences of extended delignification with Super Batch cooking method, 2002 Kraft Pulp Yield Symposium

Technical information papers
Density of Milk of Lime Solution, Technical Information Paper TIP 0607-05 (2002)

Density of Milk of Lime Solution, Technical Information Paper TIP 0607-05 (2002)

Standards
Water absorption of corrugating medium: water drop penetration test, Test Method TAPPI/ANSI T 831 om-14

Water absorption of corrugating medium: water drop penetration test, Test Method TAPPI/ANSI T 831 om-14

Technical information papers
The impact of doublebacker hot plate level on board quality and how to measure it, Technical Information Paper TIP 0304-66 (2012)

The impact of doublebacker hot plate level on board quality and how to measure it, Technical Information Paper TIP 0304-66 (2012)

Technical information papers
Ordering steel rule cutting dies, Technical Information Paper TIP 0305-21 (2008)

Ordering steel rule cutting dies, Technical Information Paper TIP 0305-21 (2008)

Technical information papers
Guidelines for routine periodic inspection and testing of cast iron Yankee and MG dryers, Technical Information Paper TIP 0425-01 (2013)

Guidelines for routine periodic inspection and testing of cast iron Yankee and MG dryers, Technical Information Paper TIP 0425-01 (2013)

Technical information papers
Inspection guidelines for Yankee hood systems, Technical Information Paper TIP 0425-02 (2013)

Inspection guidelines for Yankee hood systems, Technical Information Paper TIP 0425-02 (2013)