1. Non-combustibility Test for Materials, Recommendation ISO R 1182. International Standards Organisation, Geneva.
2. Non-Combustibility Test for Building Materials, Test Method BS 476: Part 4. British Standards Institution.
3. Fire Characteristics of Building Materials, Test Method DIN 4102. Deutsches Institute for Norwung.
4. Non-combustibility Test for Materials, Test Method NEN 3881. Nederlands Normalistic-Instituut.
5. Calorific Potential of Building Materials. Test Method ISO 1716. International Standards Organisation.