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    831 year ago

    There are several:

    • DIN EN ISO 12 625-4: 2005 (Dry tear resistance and perforation resistance)
    • DIN EN ISO 12 625-5:2005 (wet tear resistance)
    • DIN EN ISO 12 625 -9:2005 (Puncture resistance)
    • DIN EN ISO 12 625-3:2005 (Paper thickness in use)
    • EN ISO 12 625-8:2004 (Water retention capacity)

    Yet there seems to be no standard for the size or number of sheets in a roll.