From what I understand, the durability between the two is quite different. The PTFE membranes are used for the filtration of organic solvents where as the PVDF membranes are generally for low protein binding. Furthermore the PTFE membranes typically require a polyethylene support.
When the U.S. and Washington State flags are flown from a cross staff, the U.S. flag flies from the peak and the Washington State flag occupies the position on the right end of the cross staff (the observer's left). Additional Information on Display US Flags.
The flags shown in the photos of the two flagpoles at the Clivan Bundy story about states rights show the American flag on the bottom of the group of flags on one of the poles. Reply. The POW/MIA should be immediately to the left of the American flag, then the state flag to the left of the POW MIA flag.