1. BS 1139-2.1:1991 EN 74:1988. Metal scaffolding - Part 2: Couplers - Section 2.1 Specification for steel couplers, loose spigots and base-plates for use in working scaffolds and falsework made of steel tubes

2. BS 1139-2.2:2009 + A1:2015. Metal scaffolding – Part 2: Couplers and fittings – Section 2.2 Couplers and fittings outside the scope of BS EN 74 – Requirements and test methods

3. BS 1139-5:1990 HD 1000:1988. Metal scaffolding - Part 5: Specification for materials, dimensions, design loads and safety requirements for service and working scaffolds made of prefabricated elements

4. BS 1179-6:1980. Glossary of Terms used in the gas industry - Part 6: Combustion and utilization including installation at consumers’ premises

5. BS 1187:1959. Specification for Wood blocks for floors

6. BS 1192:2007 + A2:2016. Collaborative production of architectural, engineering and construction information – Code of practice

7. BS 1192-4:2014. Collaborative production of information. Part 4: Fulfilling employer’s information exchange requirements using COBie – Code of practice

8. BS 1199 and 1200-1976. Specifications for Building sands from natural sources

9. BS 1370:1979. Specification for Low heat Portland cement

10. BS 1377-1:2016. Methods of test for soils for civil engineering purposes – Part 1: General requiremen