EN 74-1:2005
Couplers, spigot pins and baseplates for use in falsework and scaffolds - Part 1: Couplers for tubes - Requirements and test procedures
腳手架和支承架用扣件、中心螺栓和底座.第1部分:管用扣件.要求和試驗規程

測試項目：
直角扣件(需要指定等級Class A /Class B)
抗滑Slipping force
抗破壞Failure force
抗拉分Pull apart force
壓痕測試indentation
十字抗彎剛度及極限彎矩(僅適用B級) Cruciform bending stiffness and Cruciform bending ultimate moment(Class B only)
扭轉剛度及轉矩(僅適用B級) Rotational stiffness and moment(ClassB only)
旋轉扣件(需要指定等級Class A/Class B)
抗滑Slipping force
抗破壞failure force
壓痕測試 indentation

平行扣件(需要指定等級Class A/Class B)
抗滑Slipping force
抗破壞failure force
壓痕測試 indentation

對接扣件(需要指定等級Class A/Class B)
抗滑Slipping force
彎矩(僅適用B級) Bending moment(Class B only)