The highest number of tests authorised in a single calendar day was on 13 November, where 13,755 tests were authorised in NHS Wales and non-NHS Wales laboratories.
Y nifer mwyaf o brofion a awdurdodwyd mewn un diwrnod calendr oedd ar 13 Tachwedd, pan awdurdodwyd 13,755 o brofion yn labordai GIG Cymru a labordai heblaw rhai GIG Cymru.