Keep a convenient 18 mL sachet on hand for conductivity meter calibration. The tear-open, single-use format makes it easy to bring solution to your work area or take it with you for on-the-go calibration.
When it is time to check your conductivity meter, open a fresh sachet where you need it instead of carrying a larger container. Follow your meter’s instructions for calibration and confirm that 2.77 EC solution is appropriate for your device.