AC           Air Conditioning, OR Alternating Current

ACI                           American Concrete Institute

AEDC               Award Engineering/Design Contract

AES                         Aramco Engineering Standard 

AFC   Approved for Construction; Automatic Frequency Control

AMS                  Aramco Materials System Catalog 

ANSI           American National Standards Institute

API                         American Petroleum Institute

ASHRAE    American Society of Heating, Refrig. & Air Condit. Engrs

ASME    American Society of Mechanical Engineers

ASTM   American Society for Testing and Materials

AWG                                  American Wire Gauge

AWWA            American Water Works Association

AWS                          American Welding Society

BOPD                             Barrels of Oil Per Day

BSI                       British Standards Institution

C/R                                       Change Request

CAD                          Computer Aided Drafting

CADD            Computer Aided Drafting & Design

CGA                   Compressed Gas Association

CO                                           Change Order

CTI                             Cooling Tower Institute

Cut-Off-Date The assigned date by which the accumulation of data for a reporting period must be completed

D-A                                    Digitial to Analog

dB                                                   Decibel

DC                                          Direct Current

DBSP                  Design Basis Scoping Paper

ESD                             Emergency Shutdown

EWO                           Engineering Work Order

FAT                        Factory Acceptance Test

FOT                        Fiber Optic Transmission

Gantt                         Bar Chart, Time Scaled

GOSP                       Gas Oil Separation Plant

Hz      Hertz (unit of frequency equal to one cycle per second

I/O                                            Input/Output

ILD                         Instrument Loop Diagram

JIS              Japanese Standards Association

JO                                                Job Order

KO                               Drum Knockout Drum

LS                                                Lump Sum

LSPM                       Lump Sum Procure/Build

LSTK                   Lump-SumTurnkey (Contract)

mA                                              Milliampere

MBCD   Thousand (M) Barrels Per Calendar Day

MMSCFD Million (MM) Standard Cubic Feet Per Day

MOV                             Motor Operated Valve

MTO                                    MaterialTake-Off

NACE   National Association of Corrosion Engineers

NCR                          Non-Conformance Report

NEC                             National Electric Code

NFPA        National Fire Protection Association

OOK                                     Out-of-Kingdom

P&ID      Piping and Instrumentation Diagrams

P/L                                                 Pipeline

PEP                          Project Execution Plan

PFD                          Process Flow Diagram

PIB                     Process Interface Building

PID               Proportional Integral Derivative

PLC    Power Line Carrier; Programmable Logic Controller

PM      Project Manager; Project Management

PO #                      Purchase Order Number

PPM                                  Parts Per Million

PR                             Purchase Requisition

PS                                    Pumping Station

PSI                        Pounds Per Square Inch

PVC                                   Polyvinylchloride

QA                                  Quality Assurance

QC                                       Quality Control

QR   Quotation Request; Qualification Record

QTR Quarter (pertaining to segment of year)

RC                               Reimbursable Cost

RCA                 Required Corrective Action

RFI     Radio Frequency Interference or Request For Inspection

RO                               Reverse Osmosis

RTD         Resistance Temperature Detector

RVL                      Restricted Vendor List

SADM       Saudi Aramco Drafting Manual

SAEP  Saudi Aramco Engineering Procedures 
SAER        Saudi Arabian Engineering Report 
SAES   Saudi Aramco Engineering Standards

SAMSS     Saudi Aramco Materials System Specifications

SASD         Saudi Aramco Standard Drawings

SASO   Saudi Arabian Standards Organization

SC               Sub-Contract or Sanitary Code

SCADA  Supervisor Control and Data Acquisition

SPE                        Senior Project Engineer

T&I                          Testing and Inspection

UL               Underwriters Laboratories, Inc.

UPS               Uninterruptible Power Supply