Short Overview
This publication provides guidance on best practice for confined space entry. It details appropriate PPE, safe entry policies and procedures, general hazards and atmosphere testing. It also includes survey preparation advice, such as approaches to tank cleaning and lighting.
Detailed Overview
Compiled by IACS, this publication contains detailed recommendations on all aspects of entering enclosed spaces safely. It includes risk management advice and an explanation of the 'permit to work' system, ensuring safety issues are intercepted before tank operations take place. The guidelines are supplemented by a handy checklist that can be used on board. The book forms a common reference point for mariners on safe survey preparation and tank entry.
Introduction
This Guideline is intended to assist Societies in developing Confined Space Entry procedures or technical instructions for the Surveyors, according to a common reference standard of good practice.
The Guideline is structured in two parts. In the first part, general information concerning definitions and requirements to safely enter and work in Confined Spaces are summarized.
The second part helps the worker to recognize the hazards associated with confined spaces and gives detailed guidelines for a safe survey preparation and entry.
A Checklist for Entry into Confined Space is also included.
Content
PART 1 - Confined Space Practices
CHAPTER 1 Definitions
1.1 Confined Space
1.2 Confined Space Entry (CSE)
1.3 Competent Person
1.4 Responsible Person
1.5 Attendant (may also be referred to as ?Standby Person?)
1.6 Marine Chemist
1.7 Adjacent Space & Connected Space
1.8 Hazardous Atmosphere
1.9 Surveyor
1.10 Permit to Enter (PTE)/Permit to Work (PTW)
CHAPTER 2 General Hazards
CHAPTER 3 Requirements
3.1 Training
3.2 Confined Space Entry Policy
3.3 Confined Space Entry Procedures
3.3.1 General
3.3.2 Entering confined spaces adjacent and/or connected to loaded tanks
3.3.3 Entering confined spaces adjacent and/or connected to inerted tanks
3.3.4 Entering confined spaces adjacent and/or connected to loaded tanks on double hull tankers ? additional requirements
3.3.5 Permit-to-work/permit-to-enter
CHAPTER 4 Confined Space Entry
4.1 Testing of the Atmosphere
4.2 Preparation for Entering Confined Spaces
4.2.1 Ventilation
4.2.2 Isolation of Space
4.2.3 Attendant Rescue Team
4.3 Personal Protection Equipment (PPE)
PART 2 - Guidelines for Safe Entry of Confined Spaces
CHAPTER 1 General
CHAPTER 2 Confined Space Hazards
2.1 Hazardous Atmospheres from the Containment in the Tank
2.1.1 Oxygen-deficient Atmosphere
2.1.2 Flammable Atmospheres
2.1.3 Toxic Atmosphere
2.2 Work Being Performed in a Confined Space
CHAPTER 3 Testing
3.1 General
3.2 Testing Instruments
CHAPTER 4 Ventilation
CHAPTER 5 Isolation of Space
CHAPTER 6 General and Physical Hazards
6.1 Temperature Extremes
6.2 Engulfment Hazards
6.3 Noise
6.4 Falling Objects
6.5 Slick/Wet Surfaces
CHAPTER 7 Guidelines for Use of Personal Gas Detectors
7.1 Function Test and Full Calibration
CHAPTER 8 Survey Preparation
8.1 Cleaning
8.2 Lighting
ANNEX Checklist for Entry into Confined Spaces
Details
Number of Pages: 83
Published Date: March 2025
Book Height: 234 mm
Book Width: 155 mm
Author: International Association of Classification Societies (IACS)