THICKNESS of CORRIGATED BOARD
Purpose of the test
This test is performed to determine the thickness of corrugated board.
Procedure
Operate the instrument in accordance with ISO 3054 and the manufacturer’s instructions. Perform one measurement on the marked side, in the centre of each single test piece.
Report 10 measures, their mean and standard deviation calculated to 3 significant figures, express the results in µm.
ISO 3054
Nr. of samples
12 test pieces (2 reserves), per Level
Sample size 150 mm x 150 mm,
Special size A4, A3
Levels
Level 1: 3.8÷4.4 mm
Level 2: 6.6÷7.2 mm
Reporting
10 valid results in µm, calculated the mean and standard deviation to 3 significant figures.