Calibration solution, pH4.01, 500mL

During the Canada Post strike, on-line orders with residential delivery addresses will be shipped using common ground carriers such as Purolator, UPS or Canpar.

Signature at the delivery is required with theses carriers so please check the anticipated delivery date for your order using the link that will be emailed to you once we ship.

If you miss the delivery you can contact the carrier to reschedule it.