40 likes | 135 Views
Revised Example for Ball Valve Normalization. Peter Greiner, NSF International Std 61 JC Meeting December 1, 2011. Revised example for ball valve normalization (DWA 61-2011-5).
E N D
Revised Example forBall Valve Normalization Peter Greiner, NSF International Std 61 JC Meeting December 1, 2011
Revised example for ball valve normalization(DWA 61-2011-5) When looking for metal release, Section 8 requires the product to be exposed to a water volume close to the Vf(static) volume used during normalization. This commonly requires creation of a “test assembly” Test Assembly [The handle of the ball valve has been set to the back of the picture to not disclose the manufacturer.] “Control”
Revised example for ball valve normalization(DWA 61-2011-5) Proposal is to change the in-line device normalization example to reflect instances where test assemblies are used.
Thanks…! Pete Greiner greinerp@nsf.org 734-769-5517