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Norm

ISO 818:1975

Issue date: 1975 01 01

Fibre building boards — Definition — Classification

The sheet material, generally exceeding 1.5 mm in thickness, shall be classified according to its density. The types of boards are subdivided into soft, medium and hard. ...
Withdrawn: 2003 10 20

The sheet material, generally exceeding 1.5 mm in thickness, shall be classified according to its density. The types of boards are subdivided into soft, medium and hard. Replaces ISO Recommendation R 818-1968 with which it is technically identical.