Description of the programme

These interlaboratory comparisons (AGLAE's programme ‘1C’) in surface waters enable to meet the requirements of:
  • accreditation scopes related to physico-chemical analyses in waters (check AGLAE's accreditation Cofrac No. 1-1664)
  • approvals issued by Departments of environment

Number of tests
Number of participants
check the annex
Accreditation of the programme
yes for all the parameters
Cost of the programme*
205 € excl. VAT
Date of the tests
check the annex (register up to one month before distribution)
* For laboratories internationally, shipping costs are extra

List of parameters

Chlorophyll a and pheopigments index: after extraction, measurement of the absorbance by molecular absorption spectrometry then calculation of the concentrations using the LORENZEN or the SCOR-UNESCO equation