EN 16161:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Procedure
7 Calculation and Expression of Results
8 Quality Assurance
9 Test report
Annex A (normative) - Published in vivo specific
        chlorophyll a absorption spectrum
Annex B (informative) - Determination of the
        appropriate chlorophyll-a specific spectral
        absorption coefficient for the IVP system
Annex C (informative) - Factors influencing the
        chlorophyll-a estimation
Annex D (informative) - Examples of paired sample
        method validation - Comparison of extraction
        and in vivo methods under operational conditions
Annex E (informative) - Validation of the spectrometric
        technique by determining the chlorophyll-a
        specific absorption of a set of algal samples
Bibliography

This European Standard provides guidance in the use of in vivo absorption techniques to quantify chlorophyll-a concentration in marine and fresh waters.This European Standard is comprised of the following:-definition of the equipment requirement;-a priori data and mathematical tools;-recommendations for verification of measurement system performance and consideration of factors that can influence measurements;-listing of the procedures to be implemented.