Askans inverkan på beläggningstendensen i ett biobränsleeldat kraftvärmeverk och växtplatsens påverkan på askegenskaperna :
… should therefore be considered to be rather uncertain when used on ashes from grate fired boilers. The use of phase diagrams is a good way to make complicated systems of melting points foreseeable, but these diagrams are not fully developed and can therefore not be used in all …