S

Seal, Explosionproof Conduit

Seal, Explosionproof Cable

Subrope Splicing

Structural Minimum Thickness

Soil-to-air interface

SAI

Small-bore piping

SBP

Secondary Process Piping

Scanning

Same or Similar Service

Scanning Nondestructive Examination

Surface Back-Pressure

Subsea Service

Subsea Mud Lift

SML

Secondary Barrier

Sizing Agent

Slope

Socket Joint

Spoolpiece

SLT

Standard Laboratory Temperature

SIF

Stress Intensification Factor

Sheath

Skidding System

Skid Rail

SAT

SIEM