Aqua Lung Regulator User Manual
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1.2.2 Nitrox use for CEE (European Community) countries
EN-144-3 and EN 13949
In CEE countries, diving with Nitrox/O2 is controlled by Standards EN 144-3 –
Respiratory protective devices - Gas cylinder valves - Part 3: Outlet connections
for diving gases Nitrox and oxygen - and EN 13949 – Respiratory equipment -
Open-circuit self-contained diving apparatus for use with compressed Nitrox
and oxygen - Requirements, testing, marking.
NOTE
: The maximum depth of the dive is determined by the type
of mixture used.
NOTE
: Aqua Lung offers a range of regulators designed and manufactured spe-
cially for use with oxygen-enriched mixtures, over 21% and up to 100% oxygen.
This range has been certified according to the EN 144-3 and EN 13949 stan-
dards and meets the requirements of the adiabatic compression tests. They
have received CE certification for this type. For further information on this range,
contact your Aqua Lung specialist centre.
DANGER
: These regulators fitted with special connections should be used only
with complementary equipment (tank valves, tanks, pressure gauges, etc.) des-
igned and prepared for use with an oxygen-enriched mixture. These items are
marked Nitrox/O2.
DANGER
: If the regulator that you use is fitted with a yoke or DIN connection, it
is designed for use only with compressed breathing air (21% oxygen and 79%
nitrogen) which meets the EN 12021 standard. DO NOT USE this equipment
with other mixtures or with gases containing more than 21% oxygen.
Disregarding this rule could result in serious accident or death caused by fire or
by an explosion.
Every Nitrox/O2 regulator is assembled in a clean workshop, using compatible
components and special lubricants.
It is important to maintain the interior of the regulator in a clean state (see
chapter 6 Regular Care). Breathing air used in the production of a mixture
should be oxygen compatible and double filtered with a hydrocarbon content
not greater than 0.1 mg/m3. Your Aqua Lung technical specialist should be
able to help you determine if the breathing air he supplies meets these criteria.
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