BS 667:1996 - Specification for illuminance meters
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Printed version of this is available at library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail.
BS 667:1996 is a British Standard titled "Specification for Oils for Use in Closed Circuits at Temperatures between -30 degrees C and 150 degrees C." However, please note that my knowledge cutoff is in September 2021, and there might have been updates or revisions to this standard since then. Therefore, it's always a good idea to consult the latest version of the standard or contact the British Standards Institution (BSI) for the most up-to-date information.