The governing body is looking for traces of plasticisers left in the blood from blood bags.
FINA took the decision at a meeting in Bangkok, following none of the 391 blood samples taken from the July and August meeting testing positive.
There were also 162 samples screened for the blood-boosting hormone EPO at the same event.
The governing body is contemplating storing blood samples for eight years after competition and also under consideration is the use of a ‘biological passport’ programme to monitor swimmers’ blood profiles for evidence of doping.
Source: Sport Industry Group