Valsts valodas centra izstrādātie inženierzinātņu, tehnikas, rūpniecības un būvniecības un arhitektūras termini

Konteksts: [..] If the lung governed demand valve has an exhalation valve the opening pressure of this exhalation valve shall be at least 4,2 mbar measured at a continuous flow of 10 l/min. [..]
Avots: EN 137:2006 "Respiratory protective devices -Self-contained open-circuit compressed air breathing apparatus with full face mask -Requirements, testing, marking"