(emergency supply)
Trealamh chun meascán análaithe a sholáthar (lena n-áirítear cúl-soláthar le haghaidh cásanna éigeandála.
Equipment for supplying breathing mixture (including a reserve supply for emergencies.
Mura ndéanfar cúl-soláthar den mheascán análaithe iomchuí, maille le haon ghléasra agus trealamh is gá, a choimeád lena bhfáil go héasca chun a n-úsáidte láithreach i gcás éigeandála agus iad ag an láthair os cionn an uisce ar uaithi atá na hoibreacha á ndéanamh.
A reserve supply of the appropriate breathing mixture, together with any necessary plant and equipment is kept both readily available for immediate use in the event of an emergency and at the place above water from which the operations are carried on.