TAPPI T 538:2001
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Roughness of paper and paperboard(Sheffield method)
01-01-2001
05-01-2026
The measuring head, which has concentric annular lands, is dead-weight loaded against the specimen, which is supported by a flat glass surface.
| DocumentType |
Standard
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| PublisherName |
Technical Association of the Pulp & Paper Industry
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
This method is a 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.
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