The discoloration, which is a topical effect, can occur due to the reaction between the NOx compound and the spin finish, which may be present on the rope yarns. However, ropes may discolor (turn yellow) if they are exposed to nitrogen oxide (NOx) combustion by-products. Life safety rope stored in rope bags under ambient conditions are only exposed to low concentrations of CO on an intermittent basis, and as result they should not suffer any damage due to the CO exposure.
Reactions involving CO require elevated temperature and pressure to proceed. It is a combustion by-product that has a very low reactivity. This is usually due to exhaust from the apparatus or other power equipment leaking into storage compartments through ventilation openings.Ĭarbon monoxide is an inert, hydrocarbon compound that exists in a gaseous state. Life safety rope stored on fire apparatus may be exposed to carbon monoxide (CO).
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