def

fluid

Liquid or gas

meta

supertypes

marker

Marker labels a dict with typing information

    phenomenon

Aspect of scientific interest with measurable quantities

        substance

Matter in one the three states solid, liquid, or gas

subtypes

gas

Substance with neither definite volume nor shape

    air

The mixture of gases which surrounds the earth

    ch2o

Formaldehyde (CH₂O)

    ch4

Methane (CH₄)

    co

Carbon monoxide (CO)

    co2

Carbon dioxide (CO₂)

    hfc

Hydrofluorocarbons

    n2o

Nitrous oxide (N₂O)

    naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

    nf3

Nitrogen trifluoride (NF₃)

    nh3

Ammonia (NH₃)

    no2

Nitrogen dioxide (NO₂)

    o2

Oxygen (O₂) - the common dioxygen allotrope in the air

    o3

Ozone (O₃)

    pfc

Perfluorocarbons

    propane

By-product of natural gas processing and petroleum refining (C₃H₈)

    sf6

Sulphur hexafluoride (SF₆)

    steam

Water in its gas form

    tvoc

Total volatile organic compound (TVOC)

liquid

Substance with definite volume but takes the shape of its container

    condensate

Liquid phase produced by the condensation of steam or other gas

    diesel

Liquid fuel specifically designed for use in diesel engines

    fuelOil

Petroleum based oil burned for energy

    gasoline

Petroleum derived liquid used as a fuel source

    water

Water in its liquid form

        blowdown-water

Water expelled from a system to remove mineral build up

        chilled-water

Water cooled for use in HVAC and industrial processes

        cold-water

Water supplied to cold taps

        condenser-water

Water used used to remove heat through condensation

        cool-water

Relatively cool water without active chilling

        domestic-water

Tap water for drinking, washing, cooking, and flushing of toilets

        ground-water

Water present under the ground or from a well

        hot-water

Hot water used for HVAC heating or supplied to hot taps

        makeup-water

Water used used to makeup water loss through leaks, evaporation, or blowdown

        purge-water

Water expelled from a system to remove contaminants

        warm-water

Relatively warm water without active heating

refrig

Fluid used in refrigeration and heat exchange

quantities

concentration

Abundance of substance in the total volume of a mixture

flow

Measure of volumetric flow of fluid

level

Range from 0% to 100%

pressure

Measure of force applied

temp

Temperature - measure of hot and cold

volume

Three dimensional space occupied by a substance