1. BS 4089:1999. Specification for Metallic hose assemblies for liquid petroleum gases and liquefied natural gases

2. BS 4293:1983. Specification for Residual current-operated circuit-breakers

3. BS 4364:1993. Specification for Industrial oxygen

4. BS 4366:1993. Specification for Industrial nitrogen

5. BS 4372:1968. Specification for Engineers’ steel measuring rules

6. BS 4395-1:1969. Specification for High strength friction grip bolts and associated nuts and washers for structural engineering metric series - Part 1: General Grade

7. BS 4395-2:1969. Specification for High strength friction grip bolts and associated nuts and washers for structural engineering metric series - Part 2: Higher grade bolts and nuts and general grade washers

8. BS 4429:1987. Specification for Rigging screws and turnbuckles for general engineering, lifting purposes and pipe hanger applications

9. BS 4447:1973. Specification for The performance of prestressing anchorages for post-tensioned construction

10. BS 4464:1969. Specification for Spring washers for general engineering and automobile purposes - Metric series