After reading about a fello WA member that has revieved his new Yellow Sticker recently, I got to reading the attached,

Some interesting reading/wording. I'm wondering if they (Fun Police) are accredited to actualy carry out these test. Got your attention?

Read on them.

Taken from here

 

 

I really like the first paragraph,

"Any company or organisation throughout Western Australia, with extensive experience or

engineering knowledge in noise level assessment "    

I wonder where our WA Funny's fit in here??  and to top it off, we have this little ditty as well..

 

 

"The extent of experience/knowledge that they have in performing the measurements

required."

Makes for some interseting reading. I'm wondering if we have a LAW unto their own on this? Love to here what your state or teritory has to say...

And in the NTC official test procedure.

http://www.ntc.gov.au/filemedia/Reports/NatStatExhaustNoiseTestSept2006.pdf

The sound level meter shall be calibrated against an acoustic calibrator immediately

before and after each series of tests of each vehicle tested. If the meter readings

obtained from these calibrations differ by more than ldB(A) the test shall be

considered invalid

So how do the Police carry out this test?

And i might have to remember to ask them for this (Below). I'll bet they cant produce half of the required information and or instructions on the test itself....

 

MEASURING INSTRUMENTS

2.1 A sound level meter complying at least with one of the specifications of:

Standard Category

International Electrotechnical Commission Publication IEC

61672-1 Ed. 1.0 (Bilingual 2002) : Electroacoustics - Sound

level meters - Part 1: Specifications

Class 1

Australian Standard AS IEC 61672.1-2004: Electroacoustics -

Sound level meters - Specifications

Class 1

International Electrotechnical Commission Publication IEC

60651 (1979) “Precision sound level meters”

Type 1

Australian Standard AS 1259.1-1990 “Acoustics - Sound level

meters Part 1 Non-integrating”

Type 1

shall be used for measurements of noise levels

1. Measurements must be carried out

using frequency weighting “A” and time weighting “F”.

Reccon itl be fun on the Christmas toy run

I actually have a NATA Calibrated sound level meter.
Will run same samples from my Low Rider over weekend.
Ride Safe
Nigel

There are several companies around that have this accreditation. They usually service the construction, marine, transport and plant manufacturers, like large gen set builders etc. A couple of acoustic suppliers also have it for when you supply an acoustic package to a manufacturer. You have to underwrite the spec and warrant it. It covers drive by, stationary and other noise attenuation criteria. I used to supply acoustic foams and laminates to the industry and had to do a certified course on acoustics as part of the job description. Bloody glad I'm retired these days...they're all getting a bit too anal about it, along with WHOS...