Osmolality measurement

The osmolality of liquid samples is determined using a freezing point osmometer according to the Ph. Eur 2.2.35 method.

Osmolality is the number of osmols per kilogram of liquid, and it reflects the total number of dissolved ionic and molecular compounds present in a kilogram of solution.

The results of the analysis are reported in mOsm/kg.

The analysis includes the determination of relative density, as the value is necessary to calculate osmolality.

NOTE: If the product is in powder form, please provide instructions for preparing the solution.

Analysis can also be performed under GMP - ask for an offer from our experts.

Suitable sample matrices
Most non-viscous liquids
Required sample quantity
30 mL
Typical turnaround time
3 weeks after receiving the samples
Available quality systems
Accredited test method
Method expert
Kia Bertula
Kia Bertula

Pricing and online order

Price per sample (Excl. VAT):
250 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Samples are entered during checkout.

Our experts review all orders to ensure the testing method is suitable for your needs and samples.

Questions? We're happy to help.

Questions? We're happy to help.

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Ask for an offer

Fill in the form, and we'll reply in one business day.

Answering the following questions helps us prepare an offer for you faster:

  • How many samples do you have and what is the sample material?
  • Do you have a recurring need for these tests? If yes, how often and for how many samples at a time?

Have questions or need help? Email us at or call our sales team.