SCHEDULE 5 (ANNEX V to Directive 97/68/EC)ANALYTICAL AND SAMPLING SYSTEM

Figure 12 Partial flow dilution system with flow control and fractional sampling

— SP Sampling probe (Figures 6 to 12)

The minimum inside diameter shall be 4 mm. The minimum diameter ratio between exhaust pipe and probe shall be four. The probe shall be an open tube facing upstream on the exhaust pipe centre-line, or a multiple hole probe as described under SP1 in section 1.1.1.