KIMAX® graduated double scale addition funnel is supplied with a ground glass stopper and a PTFE stopcock. Graduated with a double white ceramic enamel scale with the right side ascending and left side descending. Calibrated 'To Contain' and designed from ASTM Specification E1096 and Type 1C requirements. Replacement stopper is 41900R.
This KONTES® graduated addition funnel has 24/40 joints. Cylindrical funnel has a pressure equalizing line and a glass stopcock. Graduations to the stopcock are numbered both up and down. Supplied without a stopper.
The constant addition funnel design is based on the Mariotte principle and assures the drop rate regardless of the liquid level. Internal delivery scale is graduated to allow accurate resetting on successive runs. Precision-type for setting flow rates from 1 to 160 drops per minute of water at 25°C. Shut-off seal is made by lowering the PTFE shoulder into a specially formed glass seat. Constructed of borosilicate glass, PTFE, and CTFE. Probe Fluoroelastomer O-ring is size 110. Suitable for use under moderate vacuum. 19/22 refill valve/stopper has a special bore to permit initial equilibration of the apparatus when it is used under vacuum. Graduated and numbered both up and down. Supplied with operating instructions.