DPN: Diagnostic PrÃ©natal (French: Prenatal Diagnostic) DPN: Disjoncteur Phase Neutre (French: Phase Neutral Breaker; electricity) DPN: Diprenorphine (drug) DPN: Direction de la Protection de la Nature (French: Directorate of Nature Protection; various organizations) DPN: Direction des Parcs Nationaux (French: Department of National Parks; SÃ©nÃ©gal) DPN
Maximum service temperature is a measure indicating the maximum continuous temperature at which an insulation material can operate without any degradation in thermal insulation performance.MST is either measured according to:aximum Service Temperature (MST) under 500Pa â a guarantee that can be used for design. To estimate the highest continuous operating temperature at which a product can be used, a variety of methods exists.
At temperatures above 20Â°C the maximum allowable operating pressure must be reduced in proportion to the material strength. Use of PVC pipes in the temperature range from 20Â°C up to the recommended maximum continuous operating temperature of 60Â°C is well defined (for more information see PVC Temperature Considerations).owever, it is not customary to utilise this increase in strength by increasing the pressure rating. The nominal pressure rating of the pipe at 20Â°C, or PN, should still define the maximum allowable operating pressure at lower temperatures.