International standards that have been adopted as UK standards include, for example, standards adopted by the British Standards Institution (BSI) as BS ISO or BS IEC standards.
Mae safonau rhyngwladol sydd wedi cael eu mabwysiadu fel safonau'r DU yn cynnwys, er enghraifft, safonau a fabwysiadwyd gan y Sefydliad Safonau Prydeinig (BSI) fel safonau BS ISO neu BS IEC.