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.
Melting Temperature 260Â° F HDPE is available in FDA compliant & marine specialized sheets & rods. Full Sheet: 48x96 (0.06 through 2.0 thick) Rod: (0.5 through 3.0 diameter) Maximum Operating Temp. 180Â° F Dielectric Strength (V/mil) 1/8â 450-500 Properties are typical.