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Oxygen (O2) Level Control:
The Oxygen level in compressed
air derived from natural or synthetic air should fall within a narrow percent
range. Table 1 of CAN3-Z180.1-00 lists an allowable 20% - 22% range
for breathing air. Most compressed, natural air samples will have test
values of 21% ± 0.5%. The units used to represent O2 levels in are
"% by volume"
An oxygen deficiency can occur in a
prepared synthetic air or if the compressor air intake is located in an oxygen
deficient area. Under very rare conditions, air purification systems can increase the oxygen
content of air. |
