Under the latest revision of BS EN 590 (published September 2017) all Diesel fuel supplied to the UK market will be subject to two Filter Blocking Tendency tests during specific weeks of the coming winter months; fuels must meet mandated FBT limits.
IP 387: Determination of filter blocking tendency (at ambient temperature)
16th November 2017 to 15th March 2018
Specified maximum FBT of 2.52.
Seta Multi Filtration Tester, 91600-3