The minimum shelf life exclusively refers to originally sealed packages stored under adequate conditions as shown on the label, on the technical data sheet or indicated on our homepage.
The shelf life after opening is depending on various factors (e.g. storage temperatures, humidity, atmosphere, etc.) which might affect the stability after opening. Influencing outside factors can not be considered by the company .
Ideally, if the product is handled according to good laboratory practices and stored under the prescribed conditions, the shelf life after opening tends to coincide with the expiry date of the unopened package. However, it remains the user's responsibility to define the stability criteria of the product after opening/during use.