二. Corrugated Board The most commonly used linerboard grades, based on Mullen burst test grading. North American Grades European Grades Grammage Basis Weight Grammage 127g 26b 125g 161g 33b 150g 186g 38b - 205g 42b 200g - - 225g - - 250g 337g 69b 300g Other grades - 400g - - 440g 1 kg = 2.2046 b 1 meter = 3.28084 foot 1 g/m2 = 0.205 b/MSF A generation of newer linerboards has high-performance boards, meeting ECT rather than Mullen burst test and basis weight requirements. lighter grades of the high-performance boards to get satisfactory performance二. Corrugated Board The most commonly used linerboard grades, based on Mullen burst test grading. North American Grades European Grades Grammage Basis Weight Grammage 127g 26b 125g 161g 33b 150g 186g 38b - 205g 42b 200g - - 225g - - 250g 337g 69b 300g Other grades - 400g - - 440g 1 kg = 2.2046 b 1 meter = 3.28084 foot 1 g/m2 = 0.205 b/MSF A generation of newer linerboards has high-performance boards, meeting ECT rather than Mullen burst test and basis weight requirements. lighter grades of the high-performance boards to get satisfactory performance