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.
With an operating temperature range of -60F to 250F, this is the most widely used fluid for heating and HVAC applications. The specially formulated corrosion inhibitor package is easily maintained, long-lasting and replenishable. Fluid color is pink. DOWFROST HD inhibited propylene glycol-based fluid. This is recommended for use where incidental contact with potable water is possible or where use of a propylene glycol-based fluid is required by state or local regulations. The recommended use temperature range is -50F to 325F.