Calibration and innovation involved with the measuring acoustics, length, mass, optics, temperature, thermophysical properties and materials testing at Teddington, England.

List of related links from the Physics Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland.

Supports industry and commerce, with standard reference data, materials, calibration, and weights and measures programs. Overview presentation, organizational structure, calendar of exibits, and specialist groups at Boulder, Maryland.

SP performs testing of weighing instruments, scales and balances of all types. Type approval certificates, test certificates and OIML certificates can be issued from the Swedish National Testing and Research Institute, Borås, Sweden.