Bundles and towed installation

Acronyms and Abbreviations

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+ve -ve °C °F 3D 3 rd 30D A&R AGA AGI AC

positive negative

degree Celsius degree Fahrenheit

bend radius of 30 times the pipe diameter

three-dimensional

third

Abandonment and recovery

Alternating current

American Gas Association Above-ground installation

Al

Aluminium

AIS

Automatic identification system American Institute of Steel Construction As low as reasonably practical American National Standards Institute American Petroleum Institute Acoustic positioning operating s tation American Standard Code for Information Interchange (computer text) American Society of Civil Engineers Allowable stress (or strength) design American Society of Materials American Society of Mechanical Engineers American Society for Testing and Materials Accidental limit state Approximate Above seabed

AISC

ALARP

ALS ANSI

API

APOS approx. ASB ASCII ASCE ASD ASM ASME ASTM

AUT AUV AWS Bar a Bar g BAT BBL

Automated ultrasonic test Autonomous underwater vehicle Aviation turbine (fuel) American Welding Society Bar absolute (1 bar = 100 kN/m²) Bar gauge (0 bar g = 1 bar a) Best available technology US oil barrel (1 bbl ≈ 0.159 m³)

AVTUR

BE

Bitumen-enamel

BHP

Brake horse power (1 BHP ≈ 745.7 W) Boiling liquid, expanding vapour, explosion

BLEVE

BM

Bending moment

BMP BoD BOP

Best management practice

Basis of design Blow-out preventer British Petroleum Ltd

BP

BPD BPEO

Barrels per day (1 BPD ≈ 0.159 m³/day) Best practical environmental option

BS BSI

British Standard

British Standards Institute

BSR

Bend strain reliever Ethene (ethylene)

H 4 H 6 H 6

C 2 C 2 C 3

Ethane

Propene (propylene)