Description of the programme

These interlaboratory comparisons (AGLAE's programme ‘1A’) in clear freshwaters, public drinking waters, spring waters and non-atypical natural mineral waters are provided in the frame of:
  • accreditation scopes related to physico-chemical analyses in drinking waters (check AGLAE's accreditation - Cofrac No. 1-1664)
  • approvals issued by Departments of environment or Ministries of Health

An identical proficiency testing is also conducted at lower concentration levels to meet specific requirements.

Number of tests
Number of participants
check the annex
Accreditation of the programme
Cost of the programme*
310 € excl. VAT
Date of the tests
check the annex (register up to one month before)
* For laboratories internationally, shipping costs are extra

List of parameters

pH, conductivity at 25°C, REDOX potential, degree of hardness, total alkalinity, colour using (NF EN) ISO 7887 method B (without filtration)
NH4+, NO2-, NO3-, Na+, Ca2+, K+, Cl-, SO42-, PO43-, SiO32-, KMnO4 index,
turbidity, total organic carbon (TOC), Mg2+, F- and the colour by comparison with hexachloroplatinate (without filtration)