ANSI - American National Standards Institute
ASME - American Society of Mechanical Engineers
API - American Petroleum Institute
ASTM - American Society for Testing Materials
AARH - Arithmetical Average Roughness Height
ASB - Asbestos
AWWA - American Water Works Association
ASNT- American Society For Nondestructive Testing
BB - Bolted Bonnet
BBE - Bevel Both Ends
BC - Bolted Cover
BE - Bevel Ends
BM - Base Metal
BOM - Bill of Materials
BS - British Standard
BW - Buttwelding
CA - Corrosion Allowance
CE - Carbon Equivalent
CMTR - Certified Materials Test Report
CL - Class
CON - Concetric
CS - Carbon Steel
CVN - Charpy V-notch
DBB - Double Block & Bleed
DI - Ductile Iron
DIB - Double Isolation & Bleed
DFT - Dry Film Thickness
DRL - Double Random Lenght
DSS - Duplex Stainless Steel
D&S - Disc and Seat
ECC - Eccentric
EFW - Electric Fusion Weld
EN - European Standard
EPC - Engineering Procurement Construction
ERW - Electric Resistance Weld
FBE - Fusion Bonded Epoxy
FF - Flat Face
FLEX - Flexible
FLG - Flange
FT - Feet
GALV - Galvanized
GO - Gear Operated
GR - Grade
GRVD - Grooved
GS - Galvanized Steel
HAZ - Heat-Affected Zone
HBW - Brinell Hardness, Tungsten Ball Indenter
HEX - Hexagonal
HIC - Hydrogen-Induced Cracking
HP - High Pressure
HRC - Rockwell C Hardness
HVY - Heavy
HV - Vickers Hardness
ID - Inside Diameter
IN - Inch
IR - Inner Ring
ISO - International Organisation of Standardisation
LJ - Lap Joint
LP - Low Pressure
LR - Long Radius
LTCS - Carbon Steel (Low Temperature)
MSS-SP - Manufacturers Standardization Society - Standard of Practice
MAX - Maximum
MI - Malleable Iron
MIN - Minimum
MOD - Modified
MP - Middle Pressure
MPI - Magnetic Practice Inspection
MPD - Maximum Pressure Differential
MT - Magnetic ParticleTesting
MTC - Mill Test Certificate
N - Normalizing
NACE - National Association of Corrosion Engineer
NB - Norminal Bore
NBR - Nitrile Butadient Rubber
NDE - Non Destructive Examination
NPS - Nominal Pipe Size
NPT - National Taper Pipe Thread
OR - Outer Ring
OS&Y - Outside Screw and Yoke
OD - Outside Diameter
PBE - Plain Both Ends
PE - PLain End
PMI - Positive Material Identification
PQR - (weld) Procedure Qualification Record
PSL - Product Specification Level
PT - Penetrant Testing
PWHT - Post Weld Heat Treatment
Q - Quenching
QAP - Quality Assurance Planning
RB - Reducing Bore
RF - Rised Face
RJ - Ring Joint
RT - Radiographic Test
SCH - Schedule
SCRD - Screwed
SMLS - Seamless
SMYS - Specified Minimum Yield Strength
SO - Slip On
SR - Short Radius
SRL - Single Random Lenght
SS - Stainless Steel
SSC - Sulphide Stress Corrosion
STD - Standard
SW - Socket Weld
T - Tempering
TBE - Threaded Both Ends
TPI - Third Party Inspection
UT - Ultrasonic Testing
UTS - Ultimate Tensile Stress
WB - Weld Metal
WN - Weld Neck
WPQ - Welder Performance Qualification
WPS - Weld Procedure Specification
WT - Wall Thickness
XS - Extra Strong
XXS - Double Extra Strong
YS - Yield Stress
