Indonesian Laboratory Helps Reduce Road Noise

Pusarpedal is an environmental laboratory under the Indonesian Environment Ministry, performing environmental quality testing and monitoring.

It was established as an environment reference laboratory with grants from the Japanese government in 1993. It then received the testing laboratory accreditation certificate from the National Accreditation Committee (KAN) on February 7, 2001.

Pusarpedal conducted the study that set the Indonesian standards and defined the official testing methodologies, both of which refer to international ones. With more than 10 million motorbikes in Indonesia, a significant noise problem led to the introduction of regulations in 2010.

Pass-by noise legislation is used to certify all vehicles built in and imported into Indonesia. At present, Pusarpedal use an actual road for most testing, rather than a dedicated test track - and they rent a track with an asphalt or concrete surface when it is required.

However, they plan to have their own 420-metre pass-by test track within three years. Measurement projects include pass-by noise testing on trucks, with the major brands in Indonesia being Hino, Nissan and Isuzu.

Reports are made in Microsoft® Excel, with Brüel & Kjær's PULSE system now running under Microsoft® Windows® 7. Data is saved onto the PC hard drive, and then backed up after every measurement.

The full Pusarpedal case study is available at:

About Brüel & Kjær
Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration measurement systems. Brüel & Kjær helps its customers measure and manage the quality of sound and vibration in their products and in the environment. Focus areas are aerospace, space, defence, automotive, ground transportation, airport environment, urban environment, telecom, and audio.

Brüel & Kjær has an unparalleled portfolio of sound and vibration equipment, and is a renowned deliverer of innovative instrumentation, including sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers and software. To see the full range of products and systems, please visit

Brüel & Kjær also runs a variety of training courses, from basic introductions to noise and its effects to more specialised classes teaching customers how to get the most out of their equipment. Free, online training courses - conducted by our expert engineers - run throughout the year too. For all course registration details visit

Brüel & Kjær is a subsidiary of UK-based Spectris plc ( which has annual sales of £1.1bn and employs around 7,500 people worldwide across its four business segments

For additional information please contact:

Heather Wilkins

Marketing Coordinator

Bruel & Kjaer

Telephone: 01763 255 780



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