Section 3 Hazardous areas and ventilation

Clasification Society 2024 - Version 9.40

Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 3 Functional Unit Types and Special Features - Chapter 17 Pipe-laying Units - Section 3 Hazardous areas and ventilation

Section 3 Hazardous areas and ventilation

3.1 Hazardous areas and ventilation

3.1.1 For the application of hazardous area classification and ventilation requirements for pipe-laying units, see Pt 7, Ch 2 Hazardous Areas and Ventilation.

3.1.2 Ventilation in the vicinity of chemical tanks, pipe welding (see also Pt 3, Ch 17, 6.2 Compressed gas consumables) and field joint coating areas is to be specially considered to ensure adequate dilution of any dangerous gases.

3.1.3 Areas where plant piping is purged/blown-through are to be adequately ventilated, see also Pt 3, Ch 17, 6.9 Installation, testing and survey 6.9.1 and Pt 1, Ch 3, 22.2 Scope of surveys 22.2.2.

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