Section 5 Manufacture of windows

Clasification Society 2024 - Version 9.40

Clasifications Register Rules and Regulations - Rules and Regulations for the Construction & Classification of Submersibles & Diving Systems, July 2022 - Part 3 Pressure Chambers - Chapter 2 Acrylic Windows - Section 5 Manufacture of windows

Section 5 Manufacture of windows

5.1 Manufacturing procedure

5.1.1 Acrylic plastic windows are to be manufactured from material satisfying the requirements of these Rules, by recognised manufacturers, and the manufacturing procedure shall be subject to scrutiny by LR.

5.1.2 Each window shall be annealed prior to installation after all forming, including polishing has been completed. The annealing procedure shall be in accordance with the plastics manufacturer’s instructions.

5.2 Fabrication procedure

5.2.1 During the fabrication process each window shall be checked against the fabrication documents.

5.2.2 Fabrication processes or materials causing degrading of the original physical properties of the acrylic casting shall not be used.

5.3 Certification

5.3.1 Windows are to be procured under survey in agreement with LR. The stages of inspection and witness of testing of materials and pressure testing shall be agreed with LR.

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