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DPM-RT-2 Operating Manual
Appendix A:
MDG 29 Test Procedures (Extract)
The following text is an extract from the MDG 29 document (full title
“
Guideline for the
management of diesel engine pollutants in underground environments”)
. The complete
document can be downloaded from:
http://www.resourcesandenergy.nsw.gov.au/__data/assets/pdf_file/0011/419465/MDG-29.pdf
6.3.2 Procedures for Monitoring Raw Diesel Particulate Emissions
6.3.2.1 Standard Method
All diesel particulate testing shall be carried out using the following method unless the diesel engine cannot
be held in the load condition for 20 seconds in which case testing shall be carried out in accordance with clause
6.3.2.2 below.
a)
Testing equipment shall comply with clause 8.2
Diesel Particulate Monitoring Equipment.
Note:
It is not possible to use the Bosch Smoke Meter for the above tests due to its inability to measure over
a 60 second sampling period.
b)
Exhaust sampling and analysis shall be carried out by a person competent to the satisfaction of the
mine mechanical engineer to carry out such test or by a licensed laboratory.
c)
The diesel engine shall be operated until the engine temperature stabilises. Exhaust particulate
sampling and analysis shall be performed when the diesel engine is at normal operating temperature.
d)
The vehicle must be safely chocked and the vehicle brakes must be applied.
Important Safety Notice
As engines must be tested in the load condition requiring the drive train to be engaged during testing it is
important the vehicle is adequately chocked or restrained and the brakes applied to ensure it cannot “jump”
or run away while the diesel engine is under throttle during the test.
e)
Place vehicle in third gear or other gear as specified by the equipment manufacturer to carry out the
test.
f)
Run the engine at idle speed.
g)
Insert sensor probe into the undiluted raw exhaust before any particulate treatment.
Note:
This may be downstream of catalytic converters and water based scrubbers but must be before any
particulate filter.
h)
Testing shall be carried out over a 60 second cycle and on the undiluted raw exhaust as indicated in
Figure 1
below.
Appendix
A
