1. Scope 1.1
The provisions of this Standard apply to electrically operated single- and
multiple-station carbon monoxide (CO) alarming devices, hereafter referred to
as devices, intended for protection in ordinary indoor residential areas.
These areas include, but are not limited to, dwelling units, recreational
vehicles and mobile homes, unconditioned areas, health care facilities, nursing
homes, or other institutional residencies. The devices are not intended for
industrial and commercial applications. 1.2
These provisions apply to devices that are intended to protect against acute
effects of exposure to CO. Devices are intended to alarm at CO levels below
those which could cause a loss of ability to react to the dangers of Co
exposure.
Devices are not intended to alarm during long-term, low-level CO exposures
or slightly higher short-term transient CO exposure. 1.3
These provisions also apply to remote accessories that may be connected to or
are intended to be employed with a single- or multiple-station CO alarm. 1.4
If a value for a measurement is followed by a value in other units in
parenthesis, the second value may be only approximate. The first stated value
is the requirement.