Johannesburg, South Africa -- The National Laboratory Association (NLA) is hosting the Test & Measurement 2007 Conference and Exhibition at Emperors Palace Convention Centre, Johannesburg, from 19-21 November 2007.

The theme of the conference is Measurement Traceability - Challenges in the 21st century.

The key to good measurements, both physical and analytical, is the degree to which the accuracy of the measurement has been transferred from a standard of higher accuracy ultimately to one, or a combination, of the base SI units.