Is a support structure intended to span a space.

bridge

Is a shaft (civil) intended to transport flue gas to a high location in the atmosphere. It may also be used to supply fresh air via a separate flue.

chimney

Is an artefact intended to act as a barrier and boundary or means of protection or confinement.

fence

Is a civil item which is a set of items suitable to bear an item and transfer its load to the ground.

foundation

Is an artefact which is necessary, useful or desirable, especially for living or working but is not a tool for production.

furniture

A building that is used for activities associated with manufacturing and is not an office building.

industrial building

Is a loading and/or unloading system which is located in water deep enough for a ship to moor.

jetty

Is a building intended to provide a working space for people and their resources.

office building

residential building

Is a civil item intended for vehicle traffic.

road

A container intended to store liquid or solid material partly or totally below grade and that is typically open.

basin

A deck that is intended to provide a landing and take-off capability for helicopters.

helideck

A constructed retaining wall around storage where potentially polluting substances are handled, processed or stored, for the purposes of containing any unintended escape of material from that area until such time as remedial action can be taken.

bund wall

A wall that is designed to retain its integrity against a defined blast loading and fire that may subsequently follow.

blast rated wall

fire wall

Which is flat and typically vertical suitable for separation.

wall

A support connecting a riser to a structure.

riser support

Structure to allow water or a pipeline to pass under a road/railway through a pipe or concrete tube. Typically if span greater than 12ft (3.7m) then structure is a bridge

culvert

Pipework/channel/scupper designed to flow storm water (i.e. arising from atmospheric precipitation) from source areas on site to a discharge or outflow point (excludes drainage from bunded area)

storm water drain

A device which is an opening especially in the wall of a building for admission of light and air that is usually closed by casements or sashes containing transparent material (as glass)

window

A device to permit relative movement between a bridge and its support generally requiring periodic inspection and maintenance

bridge bearing

A basic physical and organizational structure or facilities (e.g. buildings and roads) needed for the operation of a site.

infrastructure

An acoustic device producing a loud sound as a signal or warning.

siren

An alarm device that makes a loud warning sound.

horn

Which is a structure of related instrumentation and control components intended to perform a measurement, control, actuation, monitoring and/or safeguarding activity.

instrument loop

A detectable transmitted energy (e.g. voltage, current, pneumatic or magnetic field strength) by which information can be transmitted.

signal

Is a software intended to describe a process step in a computer language. Typically a software implementation of a control function.

software function

A physical object intended to produce an optical radiation, usually visible.

lamp

A mechanical controller that is intended to position a given item in accordance with a received input signal.

mechanical positioner

A fluid sensor producing a differential pressure by means of two straigth tubes mounted in line with the direction of the fluid movement. One tube is open-ended and measures the stagnation pressure of the fluid. The other tube is closed in front but has openings along the tube to measure the static pressure of the fluid.

pitot tube

A process instrument that records values represented by the input signal(s).

recording instrument

A physical object for changing a signal into a corresponding movement.

actuator

A physical object that comprises a printed circuit board with electronic components intended for receive, process/transform and transmit electrical signals.

electronic circuit board

Intended to measure quantities of absorbed or evolved heat or to determine specific heats.

calorimeter

A device that generates an electrical signal of a specified frequency.

frequency generator

An instrument transformer in which the secondary current, in normal conditions of use, is substantially proportional to the primary current and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections.

current transformer

An instrument transformer in which the secondary voltage, in normal conditions of use, is substantially proportional to the primary voltage and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections.

voltage transformer

A physical object that is intended to process and annunciate alarms.

alarm unit

A computer that is specially designed and programme to calculate flow and to correct for external influence.

flow computer

A physical object that is transparent and intended for viewing a vessel or piping system interior.

sight glass

manual switch

A distribution board (network card) that is intended for communication between systems, to part of a system or to a computer network.

interface card

general instrument

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.

cold filter plugging point analyser

An analyser intended to determine the relation between the boiling temperatures and the fraction distilled. It includes the initial boiling point and the final boiling point.

distillation analyser

An analyser intended to determine the freezing point of a liquid.

freezing point analyser

An analyser which analyses the composition of gaseous mixture with two or more components.

gas composition analyser

A meter intended to measure and indicate and/or produce a signal which represents the measured humidity.

humidity analyser

liquid composition analyser

An analyser giving as output a signal that represents more than one physical properties of the analysed substance.

multi property analyser

An analyser intended to determine the oxidation and reduction capability of material.

redox analyser

A sample loop adds a predetermined volume to the process.

sample loop component

An analyser intended to determine a mixture of solid particles in liquids or solid or liquid droplets in air.

solid composition analyser

A meter intended to measure a sound pressure level.

sound pressure level analyser

An analyser intended to determine specific gravity's of materials. Typically of liquids.

specific gravity analyser

An analyser intended to determine a vapor pressure.

vapour pressure analyser

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

cloud point analyser

An analysing instrument intended to determine the density of a substance.

density analyser

An analysing instrument intended to determine the dew point of a substance.

dew point analyser

An analysing instrument intended to determine the flash point of a substance.

flash point analyser

An analysing instrument intended to measure, indicate and/or produce a signal which represents the measured alkalinity / acidity in a fluid or matter.

ph analyser

An analysing instrument intended to determine the pour point of a fluid, i.e. the lowest temperature at which an oil or other liquid will pour under given conditions.

pour point analyser

A physical object intended to be used to collect and contain representative specimens or selections.

sampler

An analysing instrument that is intended to determine a physical property that is named thermal conductivity.

thermal conductivity analyser

An analysing instrument intended to determine the viscosity of a fluid.

viscosity analyser

An analysing instrument intended to determine the wobble index of a gas.

wobbe index meter

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

chromatograph

A detecting instrument that is intended to analyse a substance for its composition and/or properties.

analysing instrument

Intended to generate radioactive radiation.

radioactive source

A physical object that detects levels; records, modifies and/or displays or performs a combination of these activities.

level instrument

A physical object that detects temperatures; records, modifies and/or displays or performs a combination of these activities.

temperature instrument

A device which gives a visual indication of a measured value.

indicating instrument

A device capable of detecting droplets of water vapour suspended in the air near the ground.

fog detector

A detector capable of detecting both heat and smoke.

heat and smoke detector

A detector which is capable of detecting selected types of liquids.

liquid detector

A detector intended to detect sand in a fluid.

sand detector

A detecting instrument for recording wind speed, and possibly wind direction.

anemometer

A detector intended to detect a leakage current to earth.

earth leakage detector

A detector intended to detect temperature.

temperature detector

A detecting instrument intended to measure, indicate and/or produce a signal which represents the rate or degree of corrosion.

corrosion meter

A detecting instrument that counts, especially an electronic or mechanical device that automatically counts occurrences or repetitions of phenomena or events.

counter

A detector that is intended to sense a flame.

flame detector

A detector that is intended to sense the presence of a specified concentration of a gas.

gas detector

A detector that is intended to detect a pig inside the pipeline or pig receiver.

pig detector

A detector that is intended to sense smoke.

smoke detector

A 'detector' for measuring the velocity, mass, charge, flight direction, and number of dust particles in space.

dust detector

A mist detector that is intended to detect oil mist.

oil mist detector

A physical object that is an assembly of a sensing element and necessary ancillary devices making it able of detecting a state, e.g. pressure, temperature, or detect the presence of a selected substance, and produce a signal based on the detection.

detector

A transmitter measuring how much of a given substance there is mixed with another substance and transmit a signal proportional to the measured level.

concentration transmitter

A facility for measuring dew point and transmitting a signal representing the measured temperature.

dew point transmitter

A transmitter measuring an axial displacement and generating a standardized output signal representing the axial measured displacement.

axial displacement transmitter

A transmitter which output is relative to a measured voltage.

voltage transmitter

A transmitter that is intended to measure and transmit conductivity.

conductivity transmitter

A transmitter that transmits an analogue electrical current.

current transmitter

A transmitter of which the output is proportional to a measured vibration.

vibration transmitter

A transmitter for weighing large quantities of material, and of which the output is proportional to the measured weight. .

weight transmitter

A pressure transmitter that is producing a standardized output signal dependent of a received pressure difference signal.

differential pressure transmitter

A transmitter that is producing a standardized output signal dependent of a received input signal from a position detector.

position transmitter

A transmitter that is producing a standardized output signal dependent of a received input signal from a rotational speed sensor.

speed transmitter

A transmitter that is producing a standardized output signal dependent of a received input signal from a temperature element.

temperature transmitter

A flow transmitter providing an output signal that is proportional to the flow inputs from a flow element.

flow transmitter

A transmitter that produces a continuous standardized output signal dependent of a received input signal from a level sensor.

level transmitter

A transmitter that is producing a standardized output signal dependent of a received input signal from a pressure element.

pressure transmitter

A physical object that is an element that receives a process variable signal from a sensor and converts it into an output signal.

transmitter

A physical object that detects an aspect of something; records, modifies and/or displays such an aspect or performs a combination of these activities.

instrument equipment

An artefact class that contains classes of artefacts or physical resources required for a purpose.

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