They both have the Enea Certification, (National Institute of Ionizing Radiation Metrology), certifying they are not radioactive, therefore they are ideal for green building.
On request this Certification can be supplied.
Remarks on green building:
ICEA (Ethical and Environmental Certification Institute) and ANAB do not issue certification regarding radioactivity of finished products.
Tests are run only on the individual minerals before the manufacturing process.
Radioactivity tests to verify the suitability of the products should be done after the manufacturing process!
We want to make this clear because we see that some flooring is certified as green (such as: stone veneer - stoneware
- single-fired ceramic - etc) when actually it is not!
It is possible to live in an authentic ecological house, made with mud and straw!