Division Applicability

Special procedures can be defined for specific operating conditions, in particular:

1. (i)

   during start-up and shutdown operations

2. (ii)

   during other special operations which could affect the proper functioning of the systems (e.g. regular and extraordinary maintenance work and cleaning operations of the furnace and/or of the waste gas treatment system, or severe production change)

3. (iii)

   in the case of insufficient waste gas flow or temperature which prevents the use of the system at full capacity.