Standards Development
The aim of the present standard is to determine surface friction of paper and board using a stylus contact method. Surface friction is determined as MAD, the mean deviation from the average coefficient of friction, obtained using a stylus contact type surface tester.
Surface properties include both surface roughness and friction. In determining the surface properties, both should be determined because they may be independent of each other. ISO NWIP 24118-1 is related to determining the surface roughness of paper and board using a stylus-type contact method.
This ISO NWIP 24118-2 is related to determining the friction of paper and board using a stylus-type contact method.
This is a revised ISO NP 24118-2 for a 3rd ballot.
On August 5, 2020, ISO/TC6/SC2/WG25 zoom meeting was held to discuss the comments on NWIP 24118-2 raised by the experts. Their comments have been incorporated as appropriate (N195). The responses to the comments are attached.
No ISO standard methods on determining surface friction are available. This proposal is to determine the MAD (mean absolute deviation from the average coefficient of friction (COF)) using a stylus-type friction tester. To this end, a friction tester which is capable of generating a friction profile of COFs against the scan length under specified testing conditions can be employed. The new friction parameter, MAD has been successfully applied to paper and board (N159).
This project proposal is to establish an ISO standard method to determine surface friction of paper and board using a stylus-type contact friction tester.
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