Abbreviations

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

There are currently 100 abbreviations in this directory beginning with the letter N.

Newton

N/D

Nipple Down

N/S

North/South

N/U

Nipple Up

N02

Nitrogen Dioxide

N0X

Nitrogen Oxides

Nitrogen

NAAQS

National Ambient Air Quality Standards

NACE

National Association Of Corrosion Engineers

NAFTA

North American Free Trade Agreement

NAPF

Non Aqueous Phase Fluid

NAVIG

Navigational Log

NAVTEX

Navigational And Meteorological Warning Broadcast Service

Nominal Bore

NCOB

No Cargo On Board

NCP

US National Oil And Hazardous Substance Pollution Contingency Plan

NCR

Nonconformance Report

NDE

Non Destructive Examination

NDT

Nondestructive Testing

Northeast

NEB

National Energy Board

NEPA

US National Environmental Policy Act

NEUT

Neutron Log

NFI

No Further Investment

NFTZ

Non Free Trade Zone

NFW

New Field Wildcat, Lahee Classification

Natural Gas

NGDC

National Geoscience Data Centre (United Kingdom)

NGH

Natural Gas Hydrate (Methane Clathrate, Or Fire Ice)

NGL

Natural Gas Liquids

NGLQT

Ngt Ql Log

NGO

Non Governmental Organisation

NGPL

Natural Gas Pipeline

NGR

Natural Gamma Ray

NGRC

National Geological Records Centre (United Kingdom)

NGS

Ngs Log

NGSS

Ngs Spectro Log

NGT

Ngt Log

NGTLD

Ngt Ldt Ql Log

NGTR

Ngt Ratio Log

NHDA

National Hydrocarbons Data Archive (United Kingdom)

NHPV

Net Hydrocarbon Pore Volume

The Nautical Institute

NIHQ

Nautical Institute Headquarters, London

NIOSH

National Institute For Occupational Safety

Nipple

Nipple (Wireline)

NITC

Normal Incremental Transfer Capability

or NKK (or ClassNK) Nippon Kaiji Kyokai (Japan'S Ship Classification Society)

Nautical Mile

NMEA

National Marine Electronics Association

NMFS

National Marine Fisheries Services (Noaa Fisheries)

NMHC

Non Methane Hydrocarbons

NMR

Nuclear Magnetic Resonance

NMVOC

Non Methane Volatile Organic Compounds

NNR

National Nature Reserve

NNS

Northern North Sea

Nitric Oxide

NOAA

National Oceanic And Atmospheric Administration

NOC

National Oil Company

NOD

Notice Of Determination

NOGEPA

Netherlands Oil And Gas Exploration And Production Association

NOI

Notice Of Intent or Notice Of Inquiry

NOIA

National Ocean Industries Association

NOISL

Noise Log

NOP

Notice Of Preparation

NOR

Notice Of Readiness

NORM

Naturally Occurring Radioactive Material

NOW

Non Hazardous Oilfield Waste

NOX

Nitrogen Oxides

Non Producing Well (As Opposed To P Producing Well)

NPD

Norwegian Petroleum Directorate

NPDES

National Pollutant Discharge Elimination System

NPFC

US National Pollution Funds Center

NPR

Notice Of Proposed Rulemaking

NPREP

National Preparedness For Response Exercise Program

NPS

Nominal Pipe Size (Sometimes Ns)

NPSH

Net Positive Suction Head

NPT

Non Productive Time or National Pipe Thread

NPV

Net Present Value

NPW

New Pool Wildcat, Lahee Classification

NRC

National Response Center

NRDA

National Resource Damage Assessment

NRI

Net Revenue Interest

NRT

National Response Team

NRV

Non Return Valve

NSA

Norwegian Shipowners' Association

NSDG

North Sea Decommissioning Group

Net Tonnage

NTE

Not To Exceed

NTHF

Non Toxic High Flash

NTL

Notice To Lessees And Operators

NTO

National Training Organization

NTP

National Toxicology Program

NTSB

US National Transportation Safety Board

NTU

Nephelometric Turbidity Unit

NUMAR

Magnetic Resonance Image Log

NUMAST

National Union Of Marine, Aviation & Shipping Transport Officers

NWI

Net Working Interest

NWR

National Wildlife Refuge

NYMEX

New York Mercantile Exchange