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.
Design information for HDPE pipe is located on the Download Page of Performance Pipeâs website. You will find links to Technical Notes, the Engineering Manual, and the Field Handbook. There is also a link to the Plastics Pipe Instituteâs Handbook of Polyethylene Pipe. Other resources include AWWA Manual M-55 and various ASCE publications including MOP 108 Pipeline Design for Horizontal Directional Drilling and MOP 112 Pipe Bursting Project.