The ALVA proficiency test of the Feed, Animal Nutrition and Plant Analysis Division is an international proficiency test that is carried out once a year. The 2026 proficiency test comprises three samples: Compound feed, mineral feed and legume, which can be ordered optionally. The samples are analysed for elements and some ingredients.

The aim of the ALVA proficiency test is to offer laboratories the opportunity to

• check the accuracy of their methods
• verify the technical expertise of their staff
• check the functionality of their laboratory equipment
• test the suitability of methods for different matrices
• fulfil the requirement of accreditation bodies to participate in proficiency testing

The organisation and implementation of this proficiency test is based on EN ISO 17043.

Registration / Timing

Please register here by 22 February 2026 at the latest, you will also find further information under this link.

The samples will be sent in March 2026.

The results must be submitted by 7 June 2026.

The results report will be sent out at the end of August 2026

Participation fee

120 € per sample (excl. VAT) plus shipping costs (Europe up to 4 samples: 35 €, > 4 samples: 55 €; Asia up to 4 samples 60 €, > 4 samples 90 €; Australia and New Zealand: up to 4 samples 80 €, > 4 samples 130 € other countries on request).
Additional material can be ordered for quality assurance purposes as long as stocks last (90 € per sample).
You will receive an invoice after the end of the registration period (at the beginning of March 2026).

Scope of analysis/methods

A list of the parameters to be analysed (ingredients, minerals and trace elements, heavy metals) will be sent with the samples, although not all of these are mandatory. The methods of analysis are not prescribed, but should be specified to facilitate interpretation of the results (the method is stated in the report). The results are to be given as mean values on a dry matter basis.

Statistical evaluation

The evaluation is carried out in accordance with DIN 13528 and includes the determination of the mean value, median, standard deviation, coefficient of variation and specification of the z-score and the recovery rate in relation to the mean value. The results report is transmitted electronically. The results are anonymous and confidential and may not be passed on or published without the consent of the ALVA.

Evaluation of results

Each participating laboratory receives a certificate of participation, as well as a presentation of the success (number of outliers) and an individual report of the results and the overall report of the proficiency test in English.