To lay down the procedure for calibration of bubble flow meter. This SOP is applicable for quality control department. Clean the bubble flow meter thoroughly with methanol and allow to dry. Close the end of the flexible tube of flow meter and fill it with water up to the 50 mL mark.
Take a 100 mL empty beaker and weigh it. Open the flexible tube slowly and collect the water in the 100 mL beaker, till the water level in the flow meter comes to zero.
Bubble Flow Meter, methanol, flexible tube, beaker

Take a 100 mL empty beaker and weigh it. Open the flexible tube slowly and collect the water in the 100 mL beaker, till the water level in the flow meter comes to zero.
Bubble Flow Meter, methanol, flexible tube, beaker

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