Glossary
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Rope Assembly Length
Definition(s)
Rope Assembly Length
The distance between the assembly interface points (as defined in the specification or purchase order) as measured at a defined tension and by a method agreed to by the purchaser and the manufacturer. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsRope Assembly
Definition(s)
Rope Assembly
The rope, its terminations, and any other accessory gear, as described in the purchaser's specification or order. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsRBS
Definition(s)
RBS
Reference break strength. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsRBS
The reference break strength for sample under test.- NOTE: 1 For a full rope assembly, RBS is the catalog break strength of the rope.
- NOTE: 2 For a subrope, RBS is the break strength of the subrope estimated by the manufacturer.
- NOTE: 3 For a scaled rope, RBS is the break strength of the scaled rope assembly estimated by the manufacturer.
Reference Break Strength
Definition(s)
Reference Break Strength
The reference break strength for sample under test.- NOTE: 1 For a full rope assembly, RBS is the catalog break strength of the rope.
- NOTE: 2 For a subrope, RBS is the break strength of the subrope estimated by the manufacturer
- NOTE: 3 For a scaled rope, RBS is the break strength of the scaled rope assembly estimated by the manufacturer.
Quality Control Report
Definition(s)
Quality Control Report
A document prepared at the completion of a designated step of the rope making and assembly process, which includes the completed quality control checklists, material certificates, and inspection reports. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsQuality Control Checklist
Definition(s)
Quality Control Checklist
A document which lists the important parameters in setting up and accomplishing a designated step of the rope making and assembly process, including normal values and tolerances. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsQuality Assurance Supervisor
Definition(s)
Quality Assurance Supervisor
An employee of the manufacturer who is responsible for ensuring the manufacturer adheres to quality assurance procedures. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsQuality Assurance Manual
Definition(s)
Quality Assurance Manual
A document which completely describes the manufacturer's quality control and assurance program. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsProduction Rope
Definition(s)
Production Rope
The rope produced for the offshore mooring system order.- NOTE: Also, a rope sample removed from production or selected after production for the purpose of testing.
Potted Socket
Definition(s)
Potted Socket
A termination generally consisting of a tapered socket into which the rope is inserted with separatedstrands and broomed out yarns and then secured by pouring of a liquid, setting resin or similar compound. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsMaterial Chemical Composition
Definition(s)
Material Chemical Composition
The generic designation of a specific chemical composition and process of material used in the fiber.- EXAMPLE Nylon, polyester, aramid, or high modulus polyethylene.
Material Certificate
Definition(s)
Material Certificate
A document prepared by the manufacturer and the fiber producer certifying the type and grade of fiber material, the properties of the yarn, and that the material used in rope production is that which is specified in the rope design specification. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsMaterial Specification
Definition(s)
Material Specification
A document which completely describes the fiber material used in the rope, including the material chemical composition, the fiber producer, the fiber type and grade, and the yarn test properties. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsManufacturing Specification
Definition(s)
Manufacturing Specification
A document which completely describes the process of making the rope, including instructions for each step of the manufacturing process. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsLay Length
Definition(s)
Lay Length
The length along the axis of a rope in which a strand makes one complete spiral around the rope axis. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsJacket
Definition(s)
Jacket
A braided or plastic covering which is placed over the rope (or over individual strands) for protection and to hold the rope structure together. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsInsert
Definition(s)
Insert
A short length of rope which can be installed in the mooring line for the purpose of extraction for testing and/or monitoring. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsInstallation Stretch
Definition(s)
Installation Stretch
The increase in length in the synthetic rope due to the application of the installation load is defined as the installation stretch. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global StandardsInstallation Stretch
The permanent increase in length introduced after application of the installation loads. Installation stretch is the construction stretch due to the installation tension. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsFiber Type
Definition(s)
Fiber Type
A designation given by the fiber producer, which indicates the manner in which a particular fiber has been drawn or spun, processed, and treated with various finishes and oils. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsFiber Grade
Definition(s)
Fiber Grade
A designation of the quality of a particular fiber, indicating the adherence of tolerances on properties.
Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global StandardsFiber Grade
Marine finish. A designation of the quality of a particular fiber, indicating the adherence of tolerances on properties. Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsYarn Producer
Definition(s)
Yarn Producer
The entity which produces the fiber and/or yarn and applies special processes to that yarn before it is received by the rope manufacturer. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsFiber Producer
Definition(s)
Fiber Producer
The entity which produces the fiber and/or yarn and applies special processes to that yarn before it is received by the rope manufacturer. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsDelayed Elastic Stretch
Definition(s)
Delayed Elastic Stretch
Rope increase in length as a function of time after the rope is loaded from a previously lower load, excluding elastic stretch and permanent elongation. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsDelayed Elastic Recovery
Definition(s)
Delayed Elastic Recovery
Rope reduction in length as a function of time after the rope is unloaded from a previously higher load, excluding elastic stretch and permanent elongation. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsCreep-log Time Plot
Definition(s)
Creep-log Time Plot
A graph of creep (ordinate) against the log of time under tension (abscissa). Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsCreep Failure
Definition(s)
Creep Failure
Rope failure due to cumulative, irrecoverable elongation of a fiber rope under load over time. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsCreep Rupture
Definition(s)
Creep Rupture
Rope failure due to cumulative, irrecoverable elongation of a fiber rope under load over time. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsConstruction Stretch
Definition(s)
Construction Stretch
The permanent elongation caused by the maximum historical load that the rope has experienced during the lifetime of the rope, primarily due to bedding-in of the rope and fibers. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsCVA
Definition(s)
CVA
Certified verification agent. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global StandardsCVA
An independent third-party who verifies that applicable technical specifications and drawings are adhered to during the rope design, manufacturing process, and deployment.- NOTE: The CVA acts on behalf of, and is certified by, the owner and/or pertinent regulatory agency.