B-32
TERM DEFINITION
Natural Gas Liquids
The hydrocarbon components: propane, butanes, and pentanes (also referred
to as condensate), or a combination of them that are subject to recovery from
raw gas liquids by processing in field separators, scrubbers, gas processing
and reprocessing plants, or cycling plants. The propane and butane
components are often referred to as liquefied petroleum gases or LPG.
Natural Gasoline
A mixture of hydrocarbons, mostly pentanes and heavier, extracted from
natural gas, which meets vapor pressure and other specifications.
NBS
National Bureau of Standards.
NC See
Normally
Closed.
NC4
A standard abbreviation for Normal Butane.
NC5
A standard abbreviation for Normal Pentane.
NEC
National Electrical Codes
Negative Acknowledgment
This refers to a response over a remote communication device, such as a
PING. Basically, saying, "I don’t acknowledge your request!" This is the
opposite of ACK. NAK is a slang term that means that you disagree or do not
acknowledge something.
NEMA
National Electrical Manufacturers Association.
NEMA, Type 3R
A standard from the National Electrical Manufacturers Association. Enclosure
constructed for indoor/outdoor use to provide protection against falling dirt, rain,
sleet and snow and remain undamaged by external formation of ice.
NEMA, Type 4
A standard from the National Electrical Manufacturers Association. Enclosure
constructed for indoor/outdoor use to provide protection against falling dirt, rai,
sleet, snow, windblown dust, splashing water, and hose-directed water and
remain undamaged by external formation of ice.
NEMA, Type 4X
A standard from the National Electrical Manufacturers Association. Enclosure
constructed as for Type 4 with protection against corrosion.
NeoC4
A standard abbreviation for Neobutane.
NeoC5
A standard abbreviation for Neopentane.
Network
A group of computers that are connected to each other by communications
lines to share information and resources.
Newton Meter
Torque measurement unit equal to 8.84 Inch Pounds.
NGC
Natural Gas Chromatograph
NGC Termination Panel
The NGC8200 Termination Panel acts as a connection to the outside world. It
features Transient Protection, a built-in voltage regulator, Positive Temperature
Co-efficient Fuses (PTC) and many other safeguards to protect the remainder
of the system from electrical damage. All outside communications and I/O are
channeled through this board. It is designed to be a low cost, field replaceable
maintenance solution and is designed to operate on either 12V or 24V.
NGC8206
Totalflow NGC8200 Gas Chromatograph, with C6+. The NGC is designed to
continually analyze natural gas streams, on-site, determine composition,
calorific value, and store the analysis information. It is designed for natural gas
streams, 800 to 1500 Btu/scf (29.8 to 55.9 Megajoules/meter
3
) with less than
100 PPM H2S.
The unit is a fully functional gas chromatograph for “Pipeline Quality” natural
gas, designed to analyze natural gas streams, dry of both hydrocarbon liquids
and water. The unit can collect and retain analysis information for one to four
independent sample streams. Applicable installations include: Transmission,
Distribution, Custody Transfer with Metrology quality results, Production, Gas
Gathering and End User Gas Markets.
NGL
See Natural Gas Liquids.
NGL
A standard abbreviation for Natural Gas Liquids.
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