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

— TT Transfer tube (Figures 4 to 12)

The particulate sample transfer tube shall be:

• as short as possible, but not more than 5m in length,

• equal to or greater than the probe diameter, but not more than 25mm in diameter,

• exiting on the centre-line of the dilution tunnel and pointing down-stream.