Therese Alshammar's world record in the 50m butterfly in short course is the oldest on the women's side.
The former swimming star set it in November 2009 in Singapore and it stands at 24.38.
Form-topping Kate Douglass, USA, was close, however, and only four hundredths of a second away in Singapore on Friday.
Douglass is in top form, taking two golds and two silvers at the Olympic Games in Paris and has broken the world record in the 200m breaststroke twice during the past week in the World Championship.
But she failed to beat Alshammar's record. Douglass now has the world's second-fastest time on the distance of all time. Sarah Sjöström has also tried to break the record, but is fourth of all time (24.50), according to the swimming site Swimswam.
Sara Junevik made it to the podium and shared third place on 25.15, just eleven hundredths above her personal record.
Two world records were broken on Friday, however.
Olympic champion Leon Marchand, four golds on home soil in Paris, broke American Ryan Lochte's 12-year-old world record in the 200m medley.
He lowered the record by 75 hundredths to 1.48.88.
American Regan Smith broke the world record for the second time in a week on the 100m backstroke and improved her time by 14 hundredths to 54.41.
