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
Burst [kPa] 40–1600
Burst [psi] 5.8–232.2

Measurement according to standards: ISO 2758, TAPPI T403, DIN EN ISO 2758, JIS P 8112 (<1370kPa). Related standards: BS 3137, CPPA D.8, APPITA P403, ASTM D774, ABCP P8, AFNOR 003-014, ISO 2759, JIS P 8131 (>1370kPa).

Datasheet