Exact(37)
ITC experiments were performed on a Microcal VP-ITC microcalorimeter (Northampton, MA) which was calibrated using the built-in electrical calibration check.
The forceplate was calibrated prior to the recordings and further underwent an automatic calibration check before each trial.
As a continuing calibration check, two calibration standards at different concentration levels analyzed at the beginning and the end of sample set.
This difference is within our Raman resolution capabilities and thus was not taken into account for our mineral analyses, but suggests that if the CCD is operated at even lower temperatures a specific calibration check might be required.
The free-field sensitivity level of the microphone and preamplifier in the reference direction, at frequencies over at least the range of one-third-octave nominal mid-band frequencies from 50 Hz to 10 kHz inclusive, is within 1.0 dB of that at the calibration check frequency, and within 2.0 dB for nominal mid-band frequencies of 6.3 kHz, 8 kHz and 10 kHz.
The phantom-derived quantification calibration factor obtained before the in vivo study was consistent with historic data for that scanner and with a confirmatory calibration check after the in vivo study (within 4%). Figure 2a shows an example of a SPECT/CT image of the three mice in the hotel before splitting into individual animals.
Similar(23)
The analytical system was calibrated using a five-point calibration, checked in each series of measurements by five standard solutions.
Redundant channels of the spectrograph and XUV photodiodes provide in-flight calibration checks on the time scale of a week, and annual rocket underflight measurements provide absolute calibration checks traceable to radiometric standards.
3.9.3 Alternative procedures for performing calibration checks (e.g., some instruments may demonstrate superior drift characteristics that require checking at less frequent intervals).
(e) The number, duration, and cause of any deviations or monitoring malfunctions (other than the time associated with zero and span calibration checks), and any corrective action taken.
Relative humidity probe calibration checks were conducted in saturated KNO3 solutions from 90 to 110°C.
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