|Quality Control Method Download the Quality Control Record Sheet|
For initial Quality Control for new customers, it is recommended that the user become familiar with the entire range of colours that are possible. Remove 6 swabs and retrieve all 6 buffer solutions (pH5.0 - pH7.5). Rest the swabs on the end of a flat surface so that the tip of the swab is not touching anything.
Add the pH buffers (2-4 drops) to the swabs on the flat surface and let them stand for 10-15 seconds, remembering not to let anything touch the swab tips. (Even paper towel will alter the pH of the swab tip)
Hold the six swabs up individually and/or together and observe the different colours for each pH level. If the product does not show a significant difference between upper and lower pH levels, contact the manufacturer.
|Be sure to review the technical insert provided by Pro-Lab if you are unsure about any step in the procedure, including interpretation of results.|