SPIROMETER SOP December 29, 2018December 29, 2018 admin SOPs for Scientific Instruments SOP SPIROMETER, Tidal Volume, Total Lung Capacity, Vital Capacity SPIROMETER STANDARD OPERATING PROCEDURE 1.Fill the water by three fourth of its height. 2.Set the scale on zero 3.Fill air by mouth 4.Check the respiratory volume 5.Remove all filled water