As a first action method, the migration of combined chromium can be determined (see E on general elements). If the migration of combined Chromium (i.e. Chromium (III) + Chromium (VI)) is below the maximum limit for Chromium (VI), it can be inferred that the material complies with the requirements for both Chromium (III) and Chromium (VI).
For Chromium VI the method in Annex F the limit of quantification(LOQ) is higher than the migration limit for category I and II toy materials. Compliance with the limits cannot be demonstrated by a migration test, however other options are available:
a.determination of the content of combined chromium ;
As a first action method, the migration of combined chromium can be determined (see E on general elements). If the migration of combined Chromium (i.e. Chromium (III) + Chromium (VI)) is below the maximum limit for Chromium (VI), it can be inferred that the material complies with the requirements for both Chromium (III) and Chromium (VI).
For Chromium VI the method in Annex F the limit of quantification(LOQ) is higher than the migration limit for category I and II toy materials. Compliance with the limits cannot be demonstrated by a migration test, however other options are available:
a.determination of the content of combined chromium ;