Standard Tests

Fluting Tests

Test & Units

Purpose of Test

Test Method

Basis Weight (lb/1000 sq ft) To determine the weight per unit area TAPPI T-410 and continuous on machine measurement
Moisture Test (%) To determine the moisture content and variability TAPPI T-412 and continuous on machine measurement
Flat Crush, CMT (LB-F) To determine the crushing resistance of lab-fluted strip TAPPI T-809
Caliper (Mil, 1/100 inch) To measure the thickness of a single sheet TAPPI T-411
Water Absorption Float Curl (second) To determine the time required to saturate a sample TAPPI T-832
Hardness (Schmidt Harness Value) To measure the variability of hardness across a roll TAPPI T-834
Fluted Edge Crush, CFC (lb/f) To determine the edgewise compressive strength TAPPI T-824






Linerboard Tests

Test & Units

Purpose of Test

Test Method

Basis Weight (GSM) To determine the weight per unit area TAPPI T-410 and continuous on machine measurement
Moisture Test (%) To determine the moisture content and variability TAPPI T-412 and continuous on machine measurement
Burst (kPa) To measure the bursting strength TAPPI T-807
Cobb, 2 Minutes (g/m2) To measure the thickness of water absorbed into the sheet TAPPI T-411
Cobb, 30 Minutes (g/m2) To measure the thickness of water absorbed into the sheet ISO 535 -1976 (E) UN Standard
Coefficient of Friction Inclined Plane Method (0) To measure the resistance to movement of one board surface against another TAPPI T-815
STFI (kN/m) To determine the edgewise compressive strength TAPPI T-826
Porosity (second/100cc) To measure the resistance to the passage of air TAPPI T-460
Caliper (mm) To measure the thickness of a single sheet TAPPI T-411
Ring Crush (kN/m) To determine the edgewise compressive strength TAPPI T-822
Scott Plybond (J/m2) To measure the internal fiber and strength TAPPI T-403

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