Programme


In 2026, proficiency tests will be carried out for the following parameter groups:

Detailed programme


Dispatch dates of Proficiency Test Organisers IFA and UBA for the year 2026:

Major Ions Metals VHH
BTEX and MTBE
 Herbicides and Pesticides
N180: 03.02.2026 (UBA)
N181: 16.03.2026 (IFA)
N182: 08.06.2026 (IFA)
N183: 07.09.2026 (IFA)
N184: 16.11.2026 (IFA)
 M180: 03.02.2026 (UBA)
M181: 16.03.2026 (IFA)
M182: 08.06.2026 (IFA)
M183: 07.09.2026 (IFA)
M184: 16.11.2026 (IFA)
 VHH:
C74:        23.02.2026 (IFA)
C75:        21.04.2026 (UBA)
C-CB13:  19.10.2026 (IFA)

BTEX and MTBE:
B-CB13:  19.10.2026 (IFA)
 H003:  24.03.2026 (UBA)
H004:  27.10.2026 (UBA)
PM06/PM06-E: 29.09.2026 (UBA)


PAH Hydrocarbon Oil Index and Phenol Index Pharmaceuticals, Industrial Chemicals, Artificial Sweeteners PFAS1)
P27: 17.02.2026 (UBA)
 SP11: 05.05.2026 (UBA)
 AZ13: 10.03.2026 (UBA)
 PF05:1) 20.10.2026 (UBA)
1) not accredited according to EN ISO 17043

Registration for the participation in our PT scheme takes place via the web application “ifatesten“.
The pricelist for 2026: can be found here.


Information for 2026

  • Registration for the proficiency test rounds as well as the transmission of results for IFA proficiency test rounds are carried out via the web application www.ifatesten.at.
  • You can freely choose, in which PT rounds you would like to participate and how many parameters you are going to determine.
  • In order to ensure that the proficiency tests from the cooperation partner (UBA) are evaluated with statistical relevance, at least 15 participants are required. Therefore, rounds with fewer registrations have to be cancelled.
  • In 2026 our cooperation partner (UBA) will once again organise a proficiency test round for pesticides in accordance with the Drinking Water Ordinance (PM06/PM06-E).
    • Option: PM06-E extended scope; PM06-E can only be ordered in addition to PM06;
  • In round N180 (major ions) the Environment Agency Austria will provide Ntot and pH as additional parameters.
  • In rounds N181 and N183 (major ions) the IFA Tulln will provide silicon and fluoride as additional parameters.
  • In rounds N182 and N184 (major ions) the IFA Tulln will provide KMnO4-Index as an additional parameter.
  • In round N183 (major ions) the IFA Tulln will provide easily liberatable cyanide as an additional parameter.
  • In round M182 (metals and trace elements), in addition to the usual scope, the parameters beryllium, cerium, cobalt, gadolinium, lithium, silver and vanadium will be included.
  • In round M184 (metals and trace elements), in addition to the usual scope, the parameters antimony, barium, molybdenum, strontium and tin will be included. Exceptionally, mercury is not included in this round.
  • In round CB13 the IFA Tulln offers the combination of the parameter groups VHH and BTEX&MTBE in the same interlaboratory comparison. The extent of participation is selectable (VHH, BTEX/MTBE or both). Evaluation of the round will be carried out in a joint report.
  • The proficiency tests VHH and BTEX/MTBE in real water samples (UBA) will be offered in an alternation mode.
    In 2026 VHH are offered and a proficiency test for BTEX/MTBE for real water samples will take place in 2027.
  • In round SP11 (sum parameters) the Environment Agency Austria offers the combination of hydrocarbon oil index and phenol index.
    It is also possible to select only the hydrocarbon oil index; only phenol index cannot be selected. The evaluation is carried out in a joint report.