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1. INTRODUCTION
1.1
BREATHABLE AIR
Air
for
compressed
apparatus may be natural or synthetic. A
typical composition of natural air is shown
in Table 1.
Element
Mass %
(Dry Air)
Oxygen
23.14
Nitrogen
75.52
Argon
1.288
Carbon Dioxide
0.048
Hydrogen
0.000 003
Neon
0.001 27
Helium
0.000 330
Krypton
0.000 0732
Xenon
0.000 039
Table 1: Breathable Air
The quality of air used to supply and
charge breathing apparatus must conform
to European Standard EN 12021 : 1999
(Requirements for Breathable Air).
Fire risk increases when the oxygen level
rises above the value shown in Table 1.
Contaminants
must
minimum,
and
must
permissible exposure levels.
Cylinder
water
content
atmospheric pressure must not exceed
3
50 mg/m
for 200 bar cylinders or 35
3
mg/m
for 300 bar cylinders.
National regulations for compressed air
breathing apparatus must be observed.
1.2
APPARATUS
SELECTION
When selecting respiratory protective
equipment the following factors must be
considered:
•
Hazards likely to be encountered
and their effect on the wearer.
•
Physical and emotional stress and
their effect on wearer breathing
rate.
•
The type of respiratory protection
required.
air
breathing
Vol. %
(Dry Air)
20.947 6
78.084
0.934
0.031 4
0.000 05
0.001 818
0.000 524
0.000 114
0.000 009
be
kept
to
a
not
exceed
of
air
at
In
general,
breathing apparatus is NOT suitable for
use where:
•
There are unknown hazards.
•
There are no planned escape
routes.
•
There are escape routes that
require
ladders, tunnels and hatches.
1.3
TRAINING
These instructions cannot replace an
accredited training course run by fully
qualified instructors in the proper and
safe use of Sabre breathing apparatus.
Please contact Training and Technical
Support
Services
distributor for training course details.
Training and Technical Support
Services:
Scott Health and Safety Limited
Pimbo Road, West Pimbo,
Skelmersdale, Lancashire,
WN8 9RA, England.
Tel: +44 (0) 1695 711711
Fax: +44 (0) 1695 711775
1.4
SERVICING
ELSA must be serviced by personnel
who have completed a formal training
course and hold a current certificate for
servicing and repairing Sabre breathing
apparatus.
Details
schedule are contained in the Sabre
ELSA Service Manual, copies of which
can only be obtained by registered
holders of a current certificate.
Your Sabre distributor or Training and
Technical Support Services will be
pleased to provide training course details
and quotes for service contracts. Please
see above for contact details.
1.5
WARRANTY
The
products
factories in Skelmersdale and Vaasa
carry a warranty of 12 months (unless
stated otherwise) for parts, labour and
return to site. The warranty period runs
from the date of purchase by the end
user.
3
ELSA
constant-flow
escape
physical
exertion,
or
your
Sabre
of
the
servicing
manufactured
at
e.g.:
our
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