Metal scaffolding - Couplers and fittings - Couplers and fittings outside the scope of BS EN 74. Requirements and test methods

Metal scaffolding - Couplers and fittings - Couplers and fittings outside the scope of BS EN 74. Requirements and test methods

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1   Scope

This section of BS 1139‑2 specifies requirements and test methods for [A1_start] aluminium couplers, steel putlogcouplers and ancillary fittings outside the scope of BS EN 74, for use in scaffolds and falsework constructed with steel scaffold tubes conforming to BS EN 39:2001, Type 3 or Type 4, or aluminium scaffold tubes conforming to BS 1139‑1.2[A1_end].
It is applicable to:
  • • aluminium right-angle, swivel and sleeve couplers;
  • • steel putlogcouplers, expanding joint pins and reveal pins;
  • • steel putlogs, putlog adapters and toe-board clips; and
  • • aluminium or steel castors.

NOTE Steel right-angle, swivel, sleeve and parallel couplers are covered by BS EN 74‑1.