Monitoring freezer(s) temperature is required by all laboratory accreditation organizations. This form is designed to monitor freezer temperature chart 3 times per day. Sometimes it may be required less frequent or more frequent (as in blood bank freezers). Numbers in (x) axis represent the day. The letter next to the number represent the shift in this day. Dot blot and drawing the curve are made manually. The form consider most of the required data by most accreditation organizations. However you have to revise your facility policy before applying it.