Couplers, spigot pins and baseplates for use in falsework and scaffolds - Special couplers. Requirements and test procedures Ingestion-build-47553 gamma-ray emitters which emit photons

gamma-ray emitters which emit photons in the energy range of 5 keV to 3 000 keV

All types of mobile nitrogen units and oxygen units with transportable gas cylinders interchangeable for filling purposes

and boiler ashes having components within the concentration ranges

28) may elect to require or support as an option

Couplers, spigot pins and baseplates for use in falsework and scaffolds - Special couplers. Requirements and test procedures Ingestion-build-47553 gamma-ray emitters which emit photons1 Scope EN 742 specifies: materials; design requirements; specified values for resistances and stiffnesses which a coupler has to achieve under test; test procedures and assessment; for the following special couplers: screw or wedge half couplers, sleeve couplers with shear studs, right angle reduction couplers and swivel reduction couplers. It gives recommendations for on going production control. These couplers are for use principally in temporary