Select the number of analyses for this year and the desired number of shipments. The option "without pre-paid shipping documents" is for customers sending their samples from an EU country to the laboratory in the Netherlands.
The pre-paid shipping documents can be dropped off at post offices and will reach the laboratory in the Netherlands in 1–2 days.

As an example; 8 analyses and 2 shipping dates:
You take 4 samples and send them together. Four weeks later — after implementing the recommended measures — you take another 4 samples and send them as a second shipment. This allows for targeted monitoring of the measures' success.

Valid for the current calendar year