5.1.1. prepare wash 50 ml hacker bikini with distilled water to clean the.5.1.2 pH 4.01 Buffer Solution pour down to approximately 40 ml.Electrode pH meter, dip 5.1.3 Buffer Solution is the Max of a 50 ml beaker.5.1.4 the machine will read the pH value, equal to 4.0 or 4.01 if the reader different deviations from the values assigned to the new test is performed again. 5.1.5. the pH readings, cases, deviations, test by pressing the Range button on the machine to see the MV value. Value of pH 4 0 ± 25 MV reading is considered the normal criteria.PH value of 7 MV value read 177 ± 25 is considered normal, the machine. PH value 10 MV value read-177.5 ± 25 is considered normal, the machine.
การแปล กรุณารอสักครู่..