National Acoustic Calibration Laboratory - ('NATacoustic')

Site

National Acoustic Calibration Laboratory

Accreditation No.

14966

Site No.

15190

Date of Accreditation

27 Sep 2004

Address

Level 1, 418A Elizabeth Street
Surry Hills, NSW 2010
Australia

natacoustic.com.au

Contact

Mr Ariel Michael P: +61 (02) 82180500

Availability

Services available to external clients

Scope of Accreditation

Print scopes
National Acoustic Calibration Laboratory

ISO/IEC 17025 (2017)

Calibration

  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Service Product Determinant Technique Procedure Limitations
Acoustical metrology - Acoustic equipment Band pass filters Frequency response Direct measurement against a reference instrument For Filter testing according to IEC 61260-3

Capability

With Calibration and Measurement Capability of-

0.2 dB for attenuation from -5 dB to ≤ 80 dB
0.5 dB for attenuation from > 80 dB to 120 dB
0.18 dB for relative attenuation at midband frequency
0.20 dB for level linearity 
0.09 dB for lower limit
Sound level meters Sound pressure level Direct measurement against a reference instrument; Direct measurement by electrical input; Direct measurement by reference sound source; Pressure field comparison measurement AS 1259.1 - 1990 Clauses 8.9, 8.10, 10.1,10.2.2, 10.2.3, 10.3.2, 10.3.3, 10.3.4, 10.4.2, 10.4.3, 10.4.4, 10.4.5
AS 1259.2 - 1990 Clauses 9.1, 9.2.1, 9.2.2, 9.2.3, 9.3.1, 9.3.2, 9.3.3, 9.3.5
IEC 60651:2001, IEC 60804:2000, IEC 61672-3

Capability

With Calibration and Measurement Capability of-

Acoustic tests using a multifunction acoustic calibrator

0.14 dB at 31.5 Hz

0.12 dB at 63 Hz

0.12 dB at 125 Hz to 500 Hz

0.11 dB at 1 kHz

0.13 dB at 2 kHz

0.14 dB at 4 kHz

0.15 dB at 8 kHz

0.21 dB at 12.5 kHz

0.37 dB at 16 kHz

Electrical tests

0.18 dB for frequency & time weighting
0.20 dB for level linearity
0.16 dB for toneburst response, peak C sound level & overload indication
0.09 dB for self-generated noise & high-level stability
Acoustical metrology - Acoustic standards and reference equipment Acoustic calibrators - Single frequency Distortion; Frequency; Short term fluctuations; Sound pressure level Comparison with a reference standard; Direct measurement against reference signal; Direct measurement by electrical input; Direct measurement by frequency analyser IEC60942

Capability

With Calibration and Measurement Capability of-

0.11 dB at nominal 1 kHz for sound pressure level

0.02 dB for short term level fluctuations

0.10 Hz for frequency

0.21% for total harmonic distortion and noise

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

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