QUESTION 4 When we use detector tube and the measured concentration is 500 ppm, what is the range of actual concentration? Hint Detector tubes are considered accurate within + 25% O a. 475 to 525 ppm. O b. 450 to 550 ppm Oc 375 to 625 ppm. d. None of the above
QUESTION 4 When we use detector tube and the measured concentration is 500 ppm, what is the range of actual concentration? Hint Detector tubes are considered accurate within + 25% O a. 475 to 525 ppm. O b. 450 to 550 ppm Oc 375 to 625 ppm. d. None of the above
Chapter4: Least-squares And Calibration Methods
Section: Chapter Questions
Problem 9P
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