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2.6 Q-Test Gas Suitability
The following gases are suitable for use with the Q-Test:
• Oxygen
• Carbon Monoxide
• Hydrogen Sulphide
• Carbon Dioxide
• Sulphur Dioxide (Reactive gas)
• Methane
• Butane
•
Propane
•
Pentane
• Acetylene
• Ethylene
• Ammonia (Reactive gas)
•
Nitrogen Dioxide
•
Nitric Oxide
•
Ozone (Reactive gas)
• Chlorine (Reactive gas)
• Chlorine Dioxide (Reactive gas)
2.7 Gas Testing Requirements/Recommendations
When using reactive gases all pipe work and regulators should be purged with the respective
reactive gas.
Crowcon recommend using a typical flow rate of the test of 0.5 litres per minute.
When using chlorine and chlorine dioxide as the test gas the typical flow rate should be increased to
1 litre per minute.
Chlorine dioxide gas testing (or calibration) must only be carried out using a chlorine dioxide
generator. Crowcon recommend Advanced Calibration Designs, inc. Gas Generator, model:
CAL2000 (P/N: 750-0603-AT), using the Chlorine Dioxide Cell (P/N: 510-2060-00). Refer to
generator instructions for use.
Ozone gas testing (or calibration) must only be carried out using an ozone generator. Crowcon recommend
Analytical Technology, inc. Ozone Generator, Model: A23-14. Refer to generator instructions for use.
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Exit
Prologue
Set-up
Operation
Service and
maintenance
Specification
Warranty
Unpacking
Contacts
Troubleshooting
