3. The permitted concentration of grit and dust emissions from a chimney serving a coal fired boiler equipped with any mechanical draught fan system shall not be more than 250 mg/Nm 3 (as measured at 0 C, 101,3 kPa and 12% CO2).
3. Uxinzelelo olwamkelekileyo lokukhutshwa kweentlalutye nothuli kwitshimini esebenzela ibhoyilara ebaswa ngamalahle enenkqubo yomatshini epholisayo draught akuvumelekanga ukuba sibe ngaphezu kwama-250 mg/Nm 3 (njengoko ilinganiswe kwi-0 C, 101,3 kPa ne-12% CO2).