Solid wood parquet — Classification of oak strips

Divides non-assembled strips into three quality grades that are identified by (+++), (++), (+) corresponding to the conditions specified in the tables. Designation or names for these quality grades may be assigned in national standards, provided that such standard indicate, at least in a note, the relationship with the ISO classification. Replaces Recommendation ISO/R 1324-1970 of which it constitutes a technical revision.