BS ISO 5323:2019 pdf free.Wood flooring and parquet一Vocabulary. 3.21 frame block piece of wood (3.1) shaped on two, three or four sides intended to form the frame of a parquet (3.23) or of an assembly of elements (3.11) 3.22 wood flooring assembly of wood (3.1) elements (3.11) installed either on the primary structure or on the sub-floor 3.23 parquet wood...