ABL800 FLEX Reference Manual 7. Solutions and gas mixtures
Gas mixtures (Gas 1 and Gas 2)
For calibration of the pCO
2
and pO
2
electrodes.
Use
Cylinder types
The following types of Gas 1 cylinders are used depending on the geographical
location of the analyser:
Gas 1
Gas 2
EU USA Japan
Cylinder Volume 1 L 1 L 1 L 1 L
Gas Volume 10 L 33 L 25 L 10 L
Fill Pressure
at 25
o
C
140 psi
(10 bar)
500 psi
(34 bar)
375 psi
(26 bar)
140 psi
(10 bar)
Composition 19.76 % O
2
, 5.60 % CO
2
74.64 % N
2
< 0.04 % O
2
, 11.22 % CO
2
88.78 % N
2
WARNING/
CAUTION:
Pressurized container. Non-flammable compressed gas. Do not breathe gas. Gas
mixtures containing less than 19.5 % oxygen may cause suffocation. Protect from
sunlight and do not expose to temperatures exceeding 50
C (122 F). Store and
use with adequate ventilation. Keep away from oil and grease. Do not refill.
o o
NOTE:
The exact composition of each gas mixture is given in the barcode on the gas
cylinder label. The barcode is entered by the barcode reader or manually.
Stability
Gas 1 and Gas 2 are stable for 25 months from the date of filling.
The gas cylinders should be stored between 2 - 32
o
C (36 - 90
o
F).
Storage
- 7-7
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