2019BS ISO 5628:2019 Paper and board. Determination of bending stiffness. General principles for two-point, three-point and four-point methods
2012BS ISO 5628:2012 Paper and board. Determination of bending stiffness. General principles for two-point, three-point and four-point methods
1991BS 7424:1991 Guide to general principles for determination of the bending stiffness of paper and board by static methods
BS ISO 5628:2012 Paper and board. Determination of bending stiffness. General principles for two-point, three-point and four-point methods has been changed from BS 7424:1991 Guide to general principles for determination of the bending stiffness of paper and board by static methods.