What Valmet Paper Lab measures?

Burst

Burst measurement gives a clear indication of paper and board strength, and is widely used for kraft papers and paperboard.

Measuring range - Paper
Burst [kPa] 40–2000
Burst [psi] 6–290

Paper measurement according to standards: ISO 2758, TAPPI T403, JIS P 8112

Measuring range - Board
Burst [kPa] 100–5500
Burst [psi] 13-725

Board measurement according to standards: ISO 2759, TAPPI T807, TAPPI T810

Datasheet - Paper

Datasheet - Board