GOST table

According to GOST 7376, corrugated cardboard is classified in the following way:

Cardboard mark Burst strength (abs.) Specific breaking strength with application of the breakdown force alongside corrugations on the creasing line after making one 180° double fold Edgewise compression strength alongside corrugations Separation resistance  Humidity
  МPа, not less  kN/m, not less  kN/m, not less  kN/m, not less          %
 Т-21(GOST)           0.7                          4               2.2              0.2      6.0-12.0
 Т-22(GOST)           0.9                          6               3              0.2      6.0-12.0
 Т-23(GOST)           1.1                          7               3.8              0.2      6.0-12.0
 Т-24(GOST)           1.2                          8               4.6              0.2      6.0-12.0
 Т-25(GOST)           1.3                          9               5.4              0.2      6.0-12.0