What Valmet Paper Lab measures?

Porosity Sheffield

Select measurement module
Burst Tear Tensile Smoothness-top and bottom Bendtsen Smoothness-top and bottom Parker Print Surf Smoothness-top and bottom Sheffield Smoothness-top and bottom Bekk Smoothness-top and bottom/Porosity-Oken Porosity Bendtsen Porosity Gurley Porosity Sheffield UV-Color Diffuse Gloss-2 Tappi 75° Caliper Basis Weight Tensile Stiffness Orientation Multi-Filler Moisture Compression strength (SCT) S-Test Bending Stiffness (Board and Paper models) Blackening Scarredness Formation

Porosity-Sheffield measurement is used in the North American paper industry.

Measuring range
Porosity-S [S.U.] 2–375

Measurement according to standard TAPPI T547. Related standard: ISO 5636-4.

Datasheet