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CGA TB-30-2008

Embrittlement Due to Overheating of DOT-4L and TC-4LM Liquid Cylinders

Maintenance of DOT-4L and TC-4LM liquid cylinders requires periodic evacuation of the annular space. Internal heating of the cylinder is a common practice in this evacuation process. TB-30 provides guidelines regarding the maximum heating temperatures for these cylinders during maintenance.

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