This standard BS 1139-1.2:1990 Metal scaffolding. Tubes is classified in these ICS categories:
91.220 Construction equipment
This Section of BS 1139 specifies requirements for the material, dimensions and method of manufacture of extruded aluminium tubes for use in scaffolding. It specifies one grade of material and one range of dimensions. Appendix A describes a drift expanding test for extruded aluminium scaffold tubes.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
Requirements and test methods for aluminium tubing used for scaffolds.