ISO 4827:2022 PDF

Ships and marine technology — Escorting and pull-back system for tankers

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Title (English):

ISO 4827:2022

Ships and marine technology — Escorting and pull-back system for tankers

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 7
Publication date:: October 12, 2022
Edition:: ISO IS 4827 edition 1 version 1
ICS:: 47.020.50

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Description (English):

This document specifies the technical requirements and test methods for escorting and pull-back system for tankers. This document is applicable to the escorting and pull-back system for tankers not less than 20 000 deadweight tonnes (DWT).

Technical details

Technical committee: ISO/TC 8/SC 4 - Outfitting and deck machinery
SKU: ISO 4827:2022

Abstract

Overview

ISO 4827:2022 - Ships and marine technology: Escorting and pull-back system for tankers specifies technical requirements and test methods for escorting and pull-back fittings installed on tankers of 20 000 DWT or more. It defines design arrangements, manufacturing materials, strength and material testing, and marking requirements for critical fittings-primarily chocks and strong points-used to connect tuglines for escorting and pulling operations.

Key topics and technical requirements

Applicability: Escorting and pull-back systems for tankers ≥ 20 000 deadweight tonnes (DWT).
Design arrangement: Minimum distance from strong point to chock L ≥ 4.0 m to ensure proper positioning of towing eye splice (exceptions for emergency towing arrangements noted).
Chock requirements:
- Minimum closed-type opening: ≥ 600 mm width × ≥ 300 mm height.
- Strength to accommodate towline angles up to ±90° horizontally and 30° vertically downward.
- Minimum Safe Working Load (SWL) and corresponding test loads:
  - 20 000 ≤ DWT

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Applicability: Escorting and pull-back systems for tankers ≥ 20 000 deadweight tonnes (DWT).
Design arrangement: Minimum distance from strong point to chock L ≥ 4.0 m to ensure proper positioning of towing eye splice (exceptions for emergency towing arrangements noted).
Chock requirements:
- Minimum closed-type opening: ≥ 600 mm width × ≥ 300 mm height.
- Strength to accommodate towline angles up to ±90° horizontally and 30° vertically downward.
- Minimum Safe Working Load (SWL) and corresponding test loads:
  - 20 000 ≤ DWT

ISO 4827:2022 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

Key topics and technical requirements

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