CGA TB-30
- Sensitization Leading to Embrittlement and Potential Failure Due to Overheating During Manufacture or Repair of DOT-4L and TC-4L
- Bulletin / Circular by Compressed Gas Association, 09/01/2016
- Category: CGA
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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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