Historical
DIN 51603-4:1998
Types ZT, C and R fuel oils - Requirements and testing (Foreign Standard)
The requirements and test methods specified in this standard apply to heavy fuel oil ZT and C plus middling fuel oil R which has to be suitable for fuel preparation for the use in combustion plants with preheating facilities. Preheating is required for transport, storage and combustion.
Deutsches Institut für Normung [din]