Method for testing the operability of a solenoid valve for triggering a safety valve having a valve member; 1.1 wherein the safety valve has a single-acting fluidic drive for the valve member, which is driven by a drive fluid; 1.2 wherein the safety valve has a positioner that determines the pressure in the drive fluid and controls the position of the valve member; 1.3 wherein the valve member assumes a safety position when the pressure in the drive fluid corresponds to an ambient pressure; 1.4 wherein the valve member assumes an operating position when the pressure in the drive fluid corresponds to an operating pressure; 1.5 wherein the solenoid valve leaves the pressure in the drive fluid unaffected in an operating position; 1.6 wherein the solenoid valve lowers the pressure in the drive fluid in a safety position; wherein the method comprises the following steps: 1.7 should the valve member not be in its operating position, it is moved thereto; 1.8 the pressure in the drive fluid is increased above the operating pressure by a first pressure difference; 1.9 an event is triggered as a result of which the solenoid valve should assume its safety position; 1.10 the pressure in the drive fluid is measured continuously and/or at a predetermined point in time after the triggering event; 1.11 the predetermined point in time being chosen such that the pressure in the drive fluid drops at most by the first pressure difference; and either 1.12 the test of the operability of the solenoid valve is considered failed if the pressure in the drive fluid at the predetermined point in time is higher than an associated reference pressure; or 1.13 the test of the operability of the solenoid valve is considered passed and is aborted as soon as the pressure during continuous measurement before or at the predetermined point in time is lower than the reference pressure. 1.1 wherein the safety valve has a single-acting fluidic drive for the valve member, which is driven by a drive fluid; 1.2 wherein the safety valve has a positioner that determines the pressure in the drive fluid and controls the position of the valve member; 1.3 wherein the valve member assumes a safety position when the pressure in the drive fluid corresponds to an ambient pressure; 1.4 wherein the valve member assumes an operating position when the pressure in the drive fluid corresponds to an operating pressure; 1.5 wherein the solenoid valve leaves the pressure in the drive fluid unaffected in an operating position; 1.6 wherein the solenoid valve lowers the pressure in the drive fluid in a safety position; wherein the method comprises the following steps: 1.7 should the valve member not be in its operating position, it is moved thereto; 1.8 the pressure in the drive fluid is increased above the operating pressure by a first pressure difference; 1.9 an event is triggered as a result of which the solenoid valve should assume its safety position; 1.10 the pressure in the drive fluid is measured continuously and/or at a predetermined point in time after the triggering event; 1.11 the predetermined point in time being chosen such that the pressure in the drive fluid drops at most by the first pressure difference; and either 1.12 the test of the operability of the solenoid valve is considered failed if the pressure in the drive fluid at the predetermined point in time is higher than an associated reference pressure; or 1.13 the test of the operability of the solenoid valve is considered passed and is aborted as soon as the pressure during continuous measurement before or at the predetermined point in time is lower than the reference pressure. 1.7 should the valve member not be in its operating position, it is moved thereto; 1.8 the pressure in the drive fluid is increased above the operating pressure by a first pressure difference; 1.9 an event is triggered as a result of which the solenoid valve should assume its safety position; 1.10 the pressure in the drive fluid is measured continuously and/or at a predetermined point in time after the triggering event; 1.11 the predetermined point in time being chosen such that the pressure in the drive fluid drops at most by the first pressure difference; and either 1.12 the test of the operability of the solenoid valve is considered failed if the pressure in the drive fluid at the predetermined point in time is higher than an associated reference pressure; or 1.13 the test of the operability of the solenoid valve is considered passed and is aborted as soon as the pressure during continuous measurement before or at the predetermined point in time is lower than the reference pressure.