Possibility #2 Not all asthmatics wheeze throughout an attack. Some don't wheeze at all. Sometimes lack of wheezing means they are no longer compensating so the lungs are hyper-inflated to the max and wheezing can't happen. Neither lung sounds nor O2 sats are good indicators for asthmatics. Peak- Flow meters are the best way to determine the status.
1 Answer. 0. The upper limit temperature for pressure service is 140 degrees Fahrenheit. ln structural pipe, gravity flow application in stable oils; the upper thermal limit is considered to be in the range of 160F for long term exposure; and up to 180 degrees Fahrenheit for short-term intermittent exposure.
Blue MDPE pipe for use in buried mains water installations. It is normally supplied in 25 metre, 50 metre or 100 metre coils and various diameters as shown below. MDPE has a pressure rating of 12 bar up to pipe diameter of 63mm and 10 bar for 90mm and 110mm pipe diameter.A range of pipe fittings are available for use with MDPE pipe. MDPE pipe is often referred to as alkathene pipe or pe pipe.For long overground runs Black MDPE pipe is used to prevent light ingress, other uses include irrigated land systems and light industrial use.DPE has a pressure rating of 12 bar up to pipe diameter of 63mm and 10 bar for 90mm and 110mm pipe diameter. A range of pipe fittings are available for use with MDPE pipe.