Rheology Testers Rheology Testing Frazier Boeing Flow Test Jig Models: F-FBR – Frazier Boeing Flow Test Jigs (All Models)F-FBR-I – Frazier Boeing Flow Test Jig – 1/10th Inch MarkingsF-FBR-M – Frazier Boeing Flow Test Jig – 2mm Markings Additional Info about the F-FBR -> Rheology Testing Standards ->