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.
It stated:  Resolved, that the flag of the United States be thirteen stripes, alternate red and white; that the union be thirteen stars, white in a blue field, representing a new Constellation.. We now observe Flag Day on June 14 each year. Since the first flag, the American flagâs design has been changed 26 times.Todayâs flag consists of 13 horizontal stripes â seven red alternating with six white. The stripes represent the original 13 colonies. The 50 stars represent the 50 states that make up the United States.ince the first flag, the American flagâs design has been changed 26 times. Todayâs flag consists of 13 horizontal stripes â seven red alternating with six white. The stripes represent the original 13 colonies.