This European Standard specifies the method for the determination of the water-soluble chromium (VI)
content of cement.
A reference method is described consisting of two stages, an extraction procedure and an analysis of
the filtered extract. Guidance on other extraction procedures, suitable for screening tests, for factory
production control or other purposes, is given but in case of dispute or failure to comply with a
regulatory limit only the reference method is used. The reference method has alternatives whereby
the filtered extract may be subjected to an oxidation step or not. The criteria by which the appropriate
procedure is selected are set down. Other instrumental procedures may be used for the analysis of
the filtered extract provided they are calibrated against the analysis of the filtered extract using the
reference procedure. In the case of a dispute, only the reference method is used.
Annex A sets out a normative procedure to be followed in case this test method is used as the basis
for evaluation of conformity of a cement with the regulatory limit in Directive 2003/53/EC.
This European Standard describes a method that applies to cements. It may have wider applicability
but this would need to be verified by testing on a product-by-product basis. Guidance in the possible
application of this European Standard to the determination of the water-soluble chromium (VI) content
of cement-containing preparations is given in Annex B.
Annexes C and D provide information on other test procedures based on paste extraction and thus
depart from the performance of cement in its normal conditions of use. They may be carried out with
or without the oxidation process. Users should be aware that results using these methods might be
significantly different to those obtained by the reference method. In the case of dispute or failure to
comply with the regulatory limit only the reference method is used.
Annex E provides guidance on a method for determination of the excess reducing agent content of
cement as used in the factory internal control system of some countries. Manufacturers using such an
internal control method should assure themselves of the relevance of results in comparison with
testing by the reference method.
BS EN 196-10:2006 Referenced Document
EN 196-1:2005 Methods of testing cement Part 1: Determination of strength
EN 196-7 Methods of testing cement - Part 7: Methods of taking and preparing samples of cement*, 2024-04-18 Update
EN 45011 General Requirements for Bodies Operating Product Certification Systems ISO/IEC Guide 65:1996
EN ISO/IEC 17020 Conformity assessment - Requirements for the operation of various types of bodies performing inspection (ISO/IEC 17020:2012)*, 2012-03-01 Update
EN ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories*, 2017-12-01 Update
BS EN 196-10:2006 history
2016BS EN 196-10:2016 Methods of testing cement. Determination of the water-soluble chromium (VI) content of cement
2006BS EN 196-10:2006 Methods of testing cement - Determination of the water soluble chromium (VI) content of cement