A physical object that is an assembly of pipes and piping parts, with valves and associated control equipment that is connected to the top of a wellhead and is intended for control of fluid from a well.

A physical object that is an assembly of pipes and piping parts, with valves and associated control equipment that is connected to the top of a wellhead and is intended for control of fluid from a well.

An analysing instrument that applies the principle of chromatography to analyse the molecular composition of a substance.

An analysing instrument that applies the principle of chromatography to analyse the molecular composition of a substance.

A mechanical switching device that at regular intervals interrupts an electric current.

A mechanical switching device that at regular intervals interrupts an electric current.

A covering or coating applied to a structure to make it weathertight.

A covering or coating applied to a structure to make it weathertight.

A mechanical device made for keeping objects firmly in place or position, temporary or permanently.

A mechanical device made for keeping objects firmly in place or position, temporary or permanently.

Any mechanical or electrical device that transmits or modifies energy to perform or assist a cleaning operation in the performance of human tasks.

Any mechanical or electrical device that transmits or modifies energy to perform or assist a cleaning operation in the performance of human tasks.

A net in an open-meshed fabric twisted, knotted, or woven together at regular intervals made for climbing.

A net in an open-meshed fabric twisted, knotted, or woven together at regular intervals made for climbing.

A timepiece for the measurement of time.

A timepiece for the measurement of time.

An analysing instrument that is intended to determine the cloud point of a fluid.

An analysing instrument that is intended to determine the cloud point of a fluid.

A transmission that is intended to transmit energy between two shafts providing the capability to connect and disconnect the shafts.

A transmission that is intended to transmit energy between two shafts providing the capability to connect and disconnect the shafts.

A gravity separator where two liquid substances separates and where the substance with the less gravity can be skimmed off.

A gravity separator where two liquid substances separates and where the substance with the less gravity can be skimmed off.

The temperature at which either the fuel specimen ceases to flow through a filter within 60 seconds or fails to return into the test jar is recorded as the Cold Filter Plugging Point.

The temperature at which either the fuel specimen ceases to flow through a filter within 60 seconds or fails to return into the test jar is recorded as the Cold Filter Plugging Point.

An artefact and a cooling appliance comprising a thermally insulated compartment and a heat pump-chemical or mechanical means-to transfer heat from it to the external environment, cooling the contents to a temperature below ambient.