Technical Authority

Technical Authority

Definition(s)

Technical Authority

Competent and technically qualified person or organization with evidence to demonstrate the expertise, skills, and experience regarding design, quality, and manufacturing processes necessary to perform the required verification(s). Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards

Technical Authority

A competent and technically qualified person or organization with evidence to demonstrate the expertise, skills, and experience regarding quality and manufacturing processes necessary to perform the required verification(s). Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Raw Material

Raw Material

Definition(s)

Raw Material

Bar, coil, rod, or wire used to manufacture bolting.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Production Lot

Production Lot

Definition(s)

Production Lot

Bolting of a single nominal diameter and grade made from the same heat lot.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Manufacturing Process Specification

Manufacturing Process Specification

Definition(s)

Manufacturing Process Specification

A written document describing the complete production sequence and method.
  • NOTE: Manufacturing process specification is usually proprietary by manufacturer and not for general publication but is available for review by customers or authorized third parties.
Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Machined Bolts, Screws and Nuts

Machined Bolts, Screws and Nuts

Definition(s)

Machined Bolts, Screws and Nuts

Parts manufactured by machining from raw material to generate the bolt, screw head, or the configuration of the nut.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Hot Formed Bolts, Screws, and Nuts

Hot Formed Bolts, Screws, and Nuts

Definition(s)

Hot Formed Bolts, Screws, and Nuts

Parts formed through the mechanical hot (at a temperature above the recrystallization temperature) up-setting of wire, rod, or bar in order to generate the bolt or screw head (hot heading) or the configuration of the nut.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Cold Formed Bolts, Screws, and Nuts

Cold Formed Bolts, Screws, and Nuts

Definition(s)

Cold Formed Bolts, Screws, and Nuts

Parts formed through the mechanical cold (at a temperature below the recrystallization temperature) up-setting of wire, rod, or bar in order to generate the bolt or screw head (cold heading) or the configuration of the nut.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Bolting Manufacturer

Bolting Manufacturer

Definition(s)

Bolting Manufacturer

An organization that, through the use of manufacturing equipment and processes appropriate for the bolting product form, transforms raw material into finished bolting.

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards
Striking Distance

Striking Distance

Definition(s)

Striking Distance

The distance over which the final breakdown of the initial lightning stroke occurs.

Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Shunt

Shunt

Definition(s)

Shunt

A short conductor that is electrically connected to the tank floating roof and contacts the tank shell.

Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Release Prevention Barrier

Release Prevention Barrier

Definition(s)

Release Prevention Barrier

A release prevention barrier includes steel bottoms, synthetic materials, clay liners, and all other barriers or combination of barriers placed in the bottom of or under an aboveground storage tank, which have the following functions:
  1. preventing the escape of contaminated material, and
  2. containing or channeling released material for leak detection.
Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
IFRT

IFRT

Definition(s)

IFRT

Internal floating-roof tank. Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards  

IFRT

An aboveground fixed roof tank with a floating roof inside the tank. Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Flash

Flash

Definition(s)

Flash

A complete discharge of the cell between the thundercloud and ground (as it applies to cloud-to-ground lightning) (Uman, The Lightning Discharge, p. 10). Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
External Floating Roof Tank

External Floating Roof Tank

Definition(s)

External Floating Roof Tank

An aboveground tank with a floating roof, which has no fixed roof and has an open top

Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
EFRT

EFRT

Definition(s)

EFRT

external floating roof tank Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards  

EFRT

An aboveground tank with a floating roof, which has no fixed roof and has an open top. Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Bypass Conductor

Bypass Conductor

Definition(s)

Bypass Conductor

A conductive cable that provides a direct electrical connection between the tank shell and the tank floating roof.

Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Action Integral

Action Integral

Definition(s)

Action Integral

The joule or ohmic heating energy dissipated per unit resistance at the lightning attachment point. The action integral is measured in A2s (amperes-squared seconds), which is the same as JΩ-1 (joules per ohm) (Rakov and Uman, Lightning: Physics and Effects, p. 277). Source: API RP 545 Recommended Practice for Lightning Protection of Aboveground Storage Tanks for Flammable or Combustible Liquids, First Edition, October 2009. Global Standards
Black Box

Black Box

Definition(s)

Black Box

An area on the side of the CCU for the attachment of end-user certification or information and is defined as a black box. This should be 305 mm × 305 mm (12 in. × 12 in.) or of sufficient size if space constricted

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
Spot

Spot

Definition(s)

Spot

Means random examination to the discretion of the surveyor/inspector.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
WLLmin

WLLmin

Definition(s)

WLLmin

Minimum working load limit. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
TM

TM

Definition(s)

TM

Nominated minimum operating temperature. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
Rp0.2

Rp0.2

Definition(s)

Rp0.2

0.2 % proof stress at room temperature. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
Rpad

Rpad

Definition(s)

Rpad

Minimum radius of pad eye. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
Re

Re

Definition(s)

Re

Specified minimum yield strength at room temperature. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
N

N

Definition(s)

n

Number of pad eyes/lifting set legs. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
L

L

Definition(s)

L

Pad eye length. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
h

h

Definition(s)

h

Pad eye weld thickness. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
FW

FW

Definition(s)

FW

Firewall. Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. Global Standards

Fw

CCU wall internal load.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
Fp

Fp

Definition(s)

Fp

Pad eye total vertical load.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards
FL

FL

Definition(s)

FL

Design load on the primary structure.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards