INTRODUCTORY NOTES IN-1
• Wear eye protection when using a compressed-air airline to clean or dry parts.
• Examine all components carefully for signs of wear or damage and renew
where necessary in accordance with the servicing instructions.
3. BREATHABLE AIR
Air for respiratory protective equipment may be natural or synthetic. The quality of air
used to supply and charge breathing apparatus must conform to EN 12021: 2014
Note:
• Contaminants must be kept to a minimum and must not exceed permissible
exposure levels.
• Air supplied to breathing apparatus must be free from the odour of oil. The
odour threshold is in the region of 0.3 mg/m
3
.
• For self-contained, open-circuit, compressed-air breathing apparatus, the water
content shall not exceed 30 mg/m
3
for 300 bar apparatus or 50 mg/m
3
for 200
bar apparatus.
• Air for compressed-air breathing apparatus must have a dew-point sufficiently
low to prevent internal freezing when apparatus is used below 4°C.
• National regulations for compressed-air airline breathing apparatus must be
observed.
Issue A 01. 2009
IN-1
(Page 3)
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