Filter Blocking Tendency (FBT) Verification Fluid – 91668-0
The Seta Filter Blocking Tendency (FBT) Verification Fluid is used for checking the calibration of the Seta Multi-Filtration Tester (91600-3), including verification of filters, according to IP 387 Procedure B and as referenced in IP PM-EA and CEN N403.
The methods recommend the use of a certified verification fluid with a nominal FBT = 2.00, a certificate stating the precise value is supplied with the verification material.
The FBT verification material is produced gravimetrically using a balance traceable to internationally recognized standards and is supplied in a 500 ml bottle.
Methods: ASTM D2068, IP 387, IP PM EA/13, EN 590