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Standards
Zero-span breaking strength of pulp (dry zero-span tensile), Test Method T 231 cm-22

Zero-span breaking strength of pulp (dry zero-span tensile), Test Method T 231 cm-22

Standards
Fiber length of pulp by projection, Test Method T 232 cm-23

Fiber length of pulp by projection, Test Method T 232 cm-23

Standards
Coarseness of pulp fibers, Test Method T 234 cm-24

Coarseness of pulp fibers, Test Method T 234 cm-24

Standards
Turpentine test for voids in glassine and greaseproof papers, TAPPI/ANSI Test Method T 454 om-25

Turpentine test for voids in glassine and greaseproof papers, TAPPI/ANSI Test Method T 454 om-25

Standards
Dealing with suspect (outlying) test determinations, Test Method TAPPI/ANSI T 1205 sp-24

Dealing with suspect (outlying) test determinations, Test Method TAPPI/ANSI T 1205 sp-24

Standards
Accelerated pollutant aging of printing and writing paper by pollution chamber exposure apparatus, Test Method TAPPI/ANSI T 572 sp-21

Accelerated pollutant aging of printing and writing paper by pollution chamber exposure apparatus, Test Method TAPPI/ANSI T 572 sp-21

Journal articles
Magazine articles
Standards
Open Access
On-machine visible dirt measurement on moving sheets and the relationships to standard laboratory methods, TAPPI Journal August 2020

ABSTRACT: There has been a proliferation of new sensors to measure on-machine dirt specks that employ different technologies and methodologies to perform measurements. The differences in the on-machine technologies are discussed in terms of the TAPPI and ISO standard laboratory test methods with respect to dirt detection using light reflected from, or light transmitted through, the sheet. Also discussed are the requirements for measuring sta-tistically representative areas of the sheet; the difference between the dirt physical size and Equivalent Black Area (EBA) size; and the implication of these issues when specifying cleanliness acceptance criteria.This technical brief describes on-machine visible dirt measurement’s relationship to standard laboratory testing.

Journal articles
Magazine articles
Standards
Open Access
Relating bending stiffness measurements across various free span lengths, TAPPI Journal August 2020

ABSTRACT: Bending stiffness should be an intrinsic property of a material, so it is puzzling that the TAPPI Standard Test Method T 836 “Bending stiffness, four point method” specifies span lengths when testing different types of corrugated fiberboard. These specified spans often limit the samples that can be measured with this method. To better understand the relationship between bending stiffness and span length, we performed measurements on a range of materials at different spans. The results provide a practical tool enabling comparison of bending stiffness measurements made at various span lengths. Additionally, this note discusses several areas that could serve as the foundation for more fundamental work exploring the bending behavior of corrugated board.

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