National Weighing & Instruments Pty Ltd (trading as NWI Calibration)


Perth Laboratory (Precision Balances)

Accreditation No.


Site No.


Date of Accreditation

28 Jun 1996


19 Industrial Drive
Malaga, WA 6090


Mr Jamie Connolly P: +61 1300669162


Services available to external clients

Scope of Accreditation

Perth Laboratory (Precision Balances)

ISO/IEC 17025 (2017)


  • 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
Mass - Determination of mass and calibration of weighing devicesIncluding onsite calibrations Laboratory weighing devices; Precision laboratory balances Mass Gravimetric measurement against reference mass


Including on site calibrations

with Calibration and Measurement Capability of - 

Precision laboratory balances -
1 in 106 or 20 μg (whichever is the greater) from 1 mg to 300 g;

Industrial balances -
2 in 106 or 20 μg (whichever is the greater) from 1 mg to 34 kg

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.

Grey text appearing in a SoA is additional freetext providing further refinement or information on the data in the preceding line entry.