FAQ
Details of acoustic testing
What devices do we test?
What parameters can we determine?
Details of the standards used
Accreditation
Contact information and request
One of the obligations of manufacturers and importers is to market only safe products in the EU. According to Directive 2006/42/EC, the manufacturer or importer must, among other things, inform users in the instruction manual about noise levels emitted by machines.
Another of the obligations of manufacturers and importers of machinery for products placed on the market in the EU is to demonstrate compliance with the requirements of Directive 2000/14/EC for the noise emission of equipment used outdoors.
We are an accredited testing laboratory that conducts individual tests in accordance with generally applicable international standards and methodologies, mainly to determine sound levels and/or sound power levels.
What kind of acoustic tests does COCH conduct?
What devices are being tested?
What parameters are measured?
What standards are used during testing?
How can a machine be submitted for testing?
Details of acoustic testing
Badania hałasu emitowanego przez pompy ciepła
One of the key parameters tested during testing for the HP KEYMARK is the noise emitted by the unit. The HP KEYMARK is a prestigious certification awarded to heating equipment, such as heat pumps, that meet stringent quality and performance standards. The noise emitted by the device is measured under various operating conditions to assess its compliance with acoustic requirements. These tests are important to ensure that the units operate quietly and do not cause nuisance to users and the environment.
What devices do we test?
We measure sound pressure level and sound power mainly on the following products:
- Air conditioners, liquid chillers, heat pumps, industrial process chillers and dryers with electrically driven compressors:
- Air conditioners, liquid chillers, heat pumps, for space heating and cooling, dehumidifiers and chillers for industrial processes
- Heat pump water heaters
- other machinery and equipment
We provide independent measurements of noise parameters cited in manufacturers’ promotional materials (e.g., in mandatory product sheets).
We are also able to provide manufacturers with development tests to optimize their product settings.
What parameters do we determine during acoustic testing?
- Noise emitted by the machine at the operator’s station and in the working space for operator movement (sound pressure)
- Calculation of the sound power level of the machine
- Noise emitted by household appliances
- Sound power level of noise sources using intensity probes – measurement by scanning method
Details of the standards used
We perform tests in accordance with European and national standards. Our Laboratory is accredited by the Polish Center for Accreditation, and we perform measurements taking into account the standards:
PN-EN 12102-1:2018-03 Klimatyzatory, ziębiarki cieczy, pompy ciepła, ziębiarki do procesów przemysłowych i osuszacze z elektrycznie napędzanymi sprężarkami — Wyznaczanie poziomu mocy akustycznej — Część 1: Klimatyzatory, ziębiarki cieczy, pompy ciepła, do ogrzewania i chłodzenia pomieszczeń, osuszacze i ziębiarki do procesów przemysłowych
PN-EN 12102-2:2019-06 Klimatyzatory, ziębiarki cieczy, pompy ciepła, ziębiarki do procesów przemysłowych i osuszacze z elektrycznie napędzanymi sprężarkami — Wyznaczanie poziomu mocy akustycznej — Część 2: Podgrzewacze wody pompą ciepła
PN-EN ISO 3744:2011 Akustyka — Wyznaczanie poziomów mocy akustycznej i poziomów energii akustycznej źródeł hałasu na podstawie pomiarów ciśnienia akustycznego — Metody techniczne stosowane w warunkach zbliżonych do pola swobodnego nad płaszczyzną odbijającą dźwięk
PN-EN ISO 3746:2011 Akustyka — Wyznaczanie poziomów mocy akustycznej i poziomów energii akustycznej źródeł hałasu na podstawie pomiarów ciśnienia akustycznego — Metoda orientacyjna z zastosowaniem otaczającej powierzchni pomiarowej nad płaszczyzną odbijającą dźwięk
PN-EN ISO 3747:2011 Akustyka — Wyznaczanie poziomów mocy akustycznej i poziomów energii akustycznej źródeł hałasu na podstawie pomiarów ciśnienia akustycznego — Metoda techniczna i orientacyjna w warunkach in situ w środowisku pogłosowym
In particular, the tests takes into account:
PN-EN 12102-1:2018-03 p. 7.4.
PN-EN 12102-2:2019-06 p. 9
PN-EN ISO 3744:2011
- Sound pressure level corrected by A characteristics
- Range: 30-136 dB
- Sound power level corrected by A characteristics (from calculations)
- Technical method under free field conditions
PN-EN 12102-1:2018-03 p. 1.
PN-EN ISO 3746:2011
- Sound pressure level corrected by A characteristics
- Range: 30-136 dB
- Sound power level corrected by A characteristics (from calculations)
- Free field orientation method
PN-EN 12102-2:2019-06 p. 9
PN-EN ISO 3747:2011
- Sound pressure level corrected by A characteristics
- Range: 30-136 dB
- Sound power level corrected by A characteristics (from calculations)
- Technical and orientation methods in a reverberant environment
Accreditation
Quality accreditation - a guarantee of trust
The AB 308 Refrigeration Equipment Laboratory is accredited by the Polish Accreditation Center and specializes in testing refrigeration equipment.
Our team consists of qualified and experienced specialists who offer comprehensive assistance in the process of preparation for testing and the refrigeration equipment tests themselves. With our services, we provide customers with reliable and professional service at every stage of cooperation.
