A standard solution used for control the measuring accuracy of the measuring unit includes a reducing substance.
Therefore, the analyte being measured can be easily identified as the standard solution or a sample liquid.
An accurately weighed sample of about 5 g of rectified concentrated must is placed in a 50 ml flask. 1 ml of standard solution of xylitol (paragraph 2.1) is added and water added to capacity.
Consequently, when the standard solution is measured, a great change appears in the current waveform between the times t0 and t1 as shown in Fig. 6 because of the presence of the reducing substance.
The calibration standard typically includes a calibration standard and a plurality of optical targets.
They are assessed by comparison with a standard lead solution corresponding to the maximum admissible concentration.
The optical targets can be removably affixed to the calibration standard surface.
An aspect of the invention relates to a calibration standard for a three-dimensional measurament system and various calibration methods and techniques.
The optical targets being are affixed to the calibration standard surface and difine a three-dimensional distribution of optical reference points.
They are assessed by comparison with a standard lead solution corresponding to the maximum admissible concentration.
The system may be utilized in-situ and may comprise a movable probe mount configured to hold the eddy current probe and to traverse the calibration standard and the nuclear fuel rod to be measured.
(2) For the purposes of subsection (1), acidity must be determined by direct titration with standard tenth normal sodium hydroxide solution, using phenolphthalein to indicate the end point.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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