FOODCROPVIDEO. Đo pH là việc thường để đánh giá môi trường trong chất lỏng. Bằng cách nào để thực hiện nó? Xem phần hướng dẫn sử dụng.
pH meter is an electronic instrument used to measure the pH of a liquid. For very precise work the pH meter should be calibrated before each measurement. Calibration is performed with three standard buffer solutions (pH4.0, pH7.0, pH10.0) that span the range of pH values to be measured. More videos at Abnova http://www.abnova.com
FOODCROPS. VIDEO BIOTECHNOLOGY
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