21. Flow of water at standard pressure of 3bar, Calculation of pipe dia . to be used? 22. The standard pressure sensor was designed to activate if depressed by a weight of roughly or greater. 23. When flying at a flight level, the altimeter is always set to standard pressure ( 29.92 hPa ). 24. The examples occur at room temperature and standard pressure , so LCW is not an undiscovered phase of water. 25. At standard pressure , one litre of water has a mass of 0.999975 kg at, and 0.997 kg at. 26. Common to positive results is that the force observed is small in comparison to experiments conducted at standard pressure . 27. Standard pressure -treated floor boards are a full inch thick, and your Douglas fir boards are unlikely to be that thick.28. As a gas it is flammable over a range of concentrations ( 5.4 17 % ) in air at standard pressure . 29. Substituting values will give approximately 10 metres for water and, by definition of standard pressure , 0.76 metres ( ) for mercury. 30. For example, the Excel-based thermodynamic database FREED creates the following type of datafile, here for a standard pressure of 1 atm.