Noise and Vibration Measurement Systems Pty Ltd

Site

Calibration Laboratory

Accreditation No.

12604

Site No.

12597

Date of Accreditation

25 Mar 1997

Address

433 Vincent Street West
West Leederville, WA 6007
Australia

nvms.com.au

Contact

Mr David Warrington P: +61 (08) 93806933

Availability

Services available to external clients

Scope of Accreditation

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 Attenuation Direct measurement by electrical input AS/NZS 4476 Clauses 4.4, 4.6, 5.3, 5.5
IEC 61260:1995 Clauses 4.4 and 5.3

Capability

with a Calibration and Measurement Capability of - 
0.13 dB from -5 dB to 80 dB
Dose meters for sound Frequency response; Noise exposure/dose Direct measurement by electrical input; Direct measurement by reference sound source AS/NZS 2399

Capability

Frequency response
Acoustic
with a Calibration and Measurement Capability of -
0.21 dB from 63 Hz to below 8 kHz
0.26 dB at 8 kHz

Noise Exposure
with a Calibration and Measurement Capability of -
0.016 Pa2h for short duration signals and unipolar pulses
Sound level meters Electrical response; Frequency response Direct measurement by electrical input; Direct measurement by reference sound source; Pressure field comparison measurement Sound level meters including tests on measuring amplifiers
by the methods of -
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 4.2, 9.1, 9.2.1, 9.2.2, 9.3.1, 9.3.2, 9.3.3, 9.3.4, 9.3.5
IEC 61672-3 Edition 2
IEC 61672-3:2006 Edition 1

Low Frequency acoustic calibration of sound level meters
by the methods of -
In-house procedure TP7

Capability

Sound level meters including tests on measuring amplifiers
Acoustic tests
with a Calibration and Measurement Capability of -
0.13 dB from 31.5 Hz to below 125 Hz
0.12 dB from 125 Hz to below 4 kHz
0.11 dB at the reference frequency of nominally 1000 Hz
0.13 dB from 4 kHz to below 12.5 kHz
0.18 dB from 12.5 kHz to below 16 kHz
0.25 dB at 16 kHz

Electrical tests
with a Calibration and Measurement Capability of -
0.09 dB

Low Frequency acoustic calibration of sound level meters
with a Calibration and Measurement Capability of -
0.4 dB from 2 Hz to 100 Hz
Acoustical metrology - Acoustic standards and reference equipment Acoustic calibrators - Multi frequency Distortion; Frequency response; Pressure sensitivity Direct measurement by frequency analyser; Pressure field comparison measurement AS IEC 60942 Annex B Periodic tests

Capability

with a Calibration and Measurement Capability of -
0.14 dB at nominal frequencies of 250 Hz and 1 kHz for sound pressure level
0.015 Hz for frequencies from 200 Hz to 20 kHz
0.07% for Total Harmonic Distortion

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