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Mark, Auto Service Technician
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Diesel emission control systems

Customer Question

Diesel emission control systems
Research:
1. National Environment Protection Measure for Diesel Vehicles (Guidelines)
• Give a brief explanation of what this involves.
Submitted: 4 years ago.
Category: Car
Expert:  Walt-Mod replied 4 years ago.

Hi,
 
I'm a moderator for this topic and I wonder whether you're still waiting for an answer. If you are, please let me know and I will do my best to find a Expert to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!
Customer: replied 4 years ago.
yes pls
Expert:  Walt-Mod replied 4 years ago.

Sometimes, finding the right Expert can take a little longer than expected and we thank you greatly for your understanding. We’ll be in touch again shortly.
Expert:  Mark replied 4 years ago.
Welcome to JustAnswer my name is Mark.

I've compiled some info for you on this subject......

The National Environment Protection (Diesel Vehicle Emissions) Measure (also known as the Diesel NEPM) was made by the National Environment Protection Council on 29 June 2001. The goal of the measure is to reduce exhaust emissions from diesel vehicles by facilitating compliance with in-service emissions standards for diesel vehicles.


Objective
To improve the emissions performance of in-service diesel vehicles by:
• providing a means of detecting vehicles emitting excess smoke;
• requiring the repair of vehicles emitting excessive smoke; and/or
• encouraging vehicle owners to regularly tune and maintain their
vehicles.

Scope
Excessive smoke emissions from diesel vehicles are visually offensive,
odorous and potentially a risk to public health. Australian Design Rule
30/00, which was introduced in 1976, required all new vehicles to meet
smoke opacity standards. However, deterioration of engine components
frequently leads to an increase in smoke emissions, which can be rectified
through service or repair.
A smoky vehicle program is intended to provide a means of detecting
vehicles that have deteriorated to a point where excessive emissions can be
visually observed. Smoky vehicle programs may require the owner to
repair the vehicle or may simply encourage owners to make repairs to
reduce smoke. Some programs combine both approaches.
Jurisdictions that currently operate smoky vehicle programs apply the “ten
second smoke rule” to identify vehicles with excess smoke emissions. That
is, smoky vehicles are those detected emitting smoke continuously for a
period of ten seconds or more.
The correlation between smoke and other pollutants is uncertain. Therefore
a smoky vehicle program which uses the ten second smoke rule cannot
ensure detection of vehicles with excess emissions of NOx, hydrocarbons
(HC), carbon monoxide (CO) or particles. Other guidelines within this
Measure describe emission management approaches which are specifically
designed to detect and rectify excessive emissions of these pollutants.
Jurisdictions should ensure that strategies are in place to detect the range of
pollutants. Jurisdictions should also monitor developments in science and
technology and seek expert advice where necessary.

Together with the use of the ten second smoke rule by authorised personnel,
smoky vehicle programs normally make provision for the general public to
report vehicles they observe to be emitting smoke. Clearly jurisdictions are
not able to require owners to repair vehicles on the basis of reports made by
the general public. Nevertheless, such reports provide the opportunity to
inform the owner that their vehicle is emitting smoke, to educate them
about the unacceptability of smoke to the public and the means by which
their vehicle may be repaired.
3. Program Outline
In developing an effective smoky vehicle program a jurisdiction should
ensure its planning covers:
• identification of the level at which smoke emissions are unacceptable;
• establishment of a system for authorised officers to report smoky
vehicle offences;
• training and authorisation of government officers;
• the need for a system for the public to report smoky vehicles;
• education of the public about the system, the issues and what they can
do to prevent or correct the problem;
• development of a targeting strategy for reporting by authorised officers
(random, roadside, targeted, periodic inspections, etc); and
• ensuring that the vehicle repair industry is trained to detect and rectify
faults associated with excessive smoke emissions.

I hope this information is helpful and let me know if you need further assistance with this.

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Mark, Auto Service Technician
Category: Car
Satisfied Customers: 11328
Experience: 22 Years Experience...Factory Trained and Certified
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Customer: replied 4 years ago.

yeah by the way did u have some webside link for this answer?~ and

how the emissions are formed

how the emission(s) are controlled
how the system/components are tested

Expert:  Mark replied 4 years ago.
That is all the information I have on the NEPM, unfortunately.
Customer: replied 4 years ago.
okay thx but

how the emissions are formed

how the emission(s) are controlled
how the system/components are tested

Customer: replied 4 years ago.
???
Expert:  Walt-Mod replied 4 years ago.

Hi,

 

I'm a moderator for this topic and I wonder whether you're still waiting for an answer. If you are, please let me know and I will do my best to find another Expert to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!

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