TAPPI T 538 : 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ROUGHNESS OF PAPER AND PAPERBOARD (SHEFFIELD METHOD)
Hardcopy , PDF
09-10-2020
English
01-01-2008
Defines a procedure for the measurement of the air flow between the specimen (backed by flat glass on the bottom side) and two pressurized, concentric annular lands that are impressed into the sample from the top side. The rate of air flow is related to the surface roughness of paper or paperboard.
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