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


Safe Working Load

Safety

Safety Accessories (Art. 1, 2.1.3)

Safety Assessment Federation

Safety Critical Plant and Equipment

Safety Extra-Low Voltage (SELV)

Safety Hoop

Safety Integrity (SI)

Safety Instrumented Function 

Safety Instrumented System

Safety Integrity Level (SIL)

Safety Management System (SIS)

Safety PLC

Safety Related Alarm

Safety Requirements Specification

Safety Valve Operating Period

Safety-Related Control System

Safety-Related Protection Systems (SRPS)

Safety-Related System

Sample (ASTM E456)

Sample (Tapping) Point

Sampling Device

Sampling System Lag

Sand Foundation

Schematic

Screen

Scroll

Sealant Injection

Seamless Pipe

Secondary Barrier

Secondary Seal

Secondary Wind Girder

Semi-Automatic Welding

Sensitivity

Sensor

Set Pressure

Shall

Shell

Shelving

Should

Shunt

Side Entry Mixer

SIL Claims for Equipment

Single-Sided Weld

Site Acceptance Test

Slab Gate Valve

Sleeved Plug Valve

Soft Seated Plug Valve

Soft Seated Valve

Soft-desk

Software

Sound Engineering Practice (SEP) (Art. 3, 3)

Sound Intensity Level

Sound Level

Sound-Power Level

Sound-Pressure Level

Source of Ignition

Spark Testing 

Spatial Awareness

Spiral Winding 

Spring Support – Examples: Variable Support, Constant Load Support, Spring Can

SQL Injection 

Stairway

Stale

Standard Deviation (NPL G11(7), ASTM E456)

Standard Pressure test

Standing

State of Statistical Control (ASTM E456)

Statistical Process Control (ASTM E456)

Steel Mill

Stepped Ramp

Stiles

Stilling Well

Stockist

Strip Mill

Structured Query Language 

Sub-contractor

Sump

Super‐Duplex Stainless Steels

Super‐Martensitic Stainless Steels

Superimposed Back-Pressure

Supervisor

Supervisory Control and Data Acquisition

Supplier

Suppression

Surveillance Level

Susceptibility to Failure

System

System Life Cycle

Systematic Error (ASTM E456)

Systematic Failures (IEV 191-04-19)