Under 684 is classed information about the design and types of construction of furniture in general, and allied trades including veneering, marquetry and upholstery.
BS 1000[684]:1979 history
2014BS 10008:2014 Evidential weight and legal admissibility of electronic information. Specification
2008BS 10008:2008 Evidential weight and legal admissibility of electronic information – Specification
1979BS 1000[684]:1979 Universal Decimal Classification - English full edition - Furniture and allied industries