Under 678 is classed information about macromolecular materials (rubbers and plastics), including the processes, machinery and equipment associated with these materials.
BS 1000[678]:1981 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
1981BS 1000[678]:1981 Universal Decimal Classification - English full edition - Industries based on macromolecular materials - Rubbers - Plastics