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BS EN ISO 21671:2006+A1:2011
Dentistry. Rotary polishers (British Standard)
ISO 21671:2006 specifies the dimensions and other requirements for the most commonly used polishers which are used at the working place of the dentist and/or in the dental laboratory.
ISO 21671:2006 is applicable to unmounted and mounted polishers.
British Standards Institution [bsi]