Metal scaffolding. Tubes - Specification for aluminium tube Ingestion-build-201039 It also gives recommendations on:

It also gives recommendations on:

an intrusion and hold-up system should be integrated with appropriate physical security devices and procedures

It does not apply to films with silver images produced by dry or thermal processing or by diffusion-reversal processing

Maintaining an accurate scope statement

Metal scaffolding. Tubes - Specification for aluminium tube Ingestion-build-201039 It also gives recommendations on:What is BS 1139 1. 2 Specification for aluminium tube about? BS 1139 1. 2 is applicable to metal scaffolding of aluminium tube BS 1139 1. 2 specifies requirements for the material, dimensions, and method of manufacture of extruded aluminium tubes for use in scaffolding. BS 1139 1. 2 specifies one grade of material and one range of dimensions. Appendix A describes a drift expanding test for extruded aluminium scaffold tubes. Who is BS 1139 1. 2