01Follow the instrument method
The manufacturer specifies how the analyser is checked or calibrated and which reference conditions are suitable. Select reference gas composition and concentration accordingly. A convenient cylinder with an approximate oxygen value is not necessarily an adequate standard.
02Review the certificate and handling
Confirm the certified value, uncertainty, validity period and relevant cylinder identification. Include regulators and connections compatible with the gas and required measurement quality. Trace-gas work is especially sensitive to contamination introduced by unsuitable handling arrangements.
03Keep the result interpretable
Record reference-gas identity, instrument condition, observed values and any adjustment. Distinguish a verification from a calibration that changes the instrument. If the result is unacceptable, investigate the reference and sample arrangement as well as the analyser before releasing it back to duty.
These public references explain general technology. They do not establish AIDEKE model performance, a supply commitment or a third-party endorsement. The article is an independent editorial explanation; the confirmed technical agreement governs a specific project.
Sources and usage notes