Introduction; Breathable Air; Apparatus Selection; Training - Sabre ELSA Dash User Instruction

1. INTRODUCTION

1.1

BREATHABLE AIR

Air for compressed air breathing apparatus
may be natural or synthetic. A typical
composition of natural air (at atmospheric
pressure and room temperature) is shown
in Table 1.
Element Mass %
(Dry Air)
Oxygen 23.14
Nitrogen 75.52
Argon 1.29
Carbon Dioxide 0.05
Hydrogen 0.000 003
Neon 0.001 270
Helium 0.000 037
Krypton 0.000 330
Xenon 0.000 039
Table 1: Breathable Air
The quality of air used to supply and
charge breathing apparatus must conform
to EN 12021 : 1999 (Requirements for
Breathable Air).
Fire risk increases when the oxygen level
rises above the value shown in Table 1.
Contaminants must be kept to a minimum,
and must not
exposure levels.
Cylinder water content
atmospheric pressure must not exceed 50
3
mg/m for 200 bar cylinders or 35 mg/m
for 300 bar cylinders.
National regulations for compressed air
breathing apparatus must be observed.
1.2

APPARATUS SELECTION

When selecting respiratory
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.
Volume %
(Dry Air)
20.948
78.08
0.93
0.031 4
0.000 05
0.001 818
0.000 524
0.000 114
0.000 009
exceed permissible
of air at
protective
ELSA DASH/SPRINT
In general, constant flow escape breathing
apparatus is NOT suitable for use where:
•
There are unknown hazards.
•
There
routes.
•
There are escape routes that require
physical
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
distributor for training course details.
Training and Technical Support
Services:
Scott Health and Safety Limited
Pimbo Road, West Pimbo,
Skelmersdale, Lancashire,
WN8 9RA, United Kingdom.
Tel: +44 (0) 1695 711711
Fax: +44 (0) 1695 711775
1.4

SERVICING

ELSA apparatus must be serviced by
personnel who have completed a formal
training course
certificate for servicing and repairing
Sabre breathing apparatus. Details of the
servicing schedule are contained in the
ELSA Dash and ELSA Sprint Service
3
Manuals, 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 previous page for contact details.
1.5

SHELF LIFE

Providing that ELSA apparatus is serviced
regularly as described in the ELSA Dash
and ELSA Sprint Service Manuals, there
are no shelf life limitations.
1
are no planned
exertion, e.g.:
Services or your
and hold a
escape
ladders,
Sabre
current