What Is the Maximum Safe Temperature for Oxygen and Acetylene Tanks When Exposed to Direct Sunlight

The temperature to avert explosive risks for oxygen and acetylene cylinders in sunlight exposure should be maintained under 40°C.

This guideline is stipulated in TSGR0006-2014, the official Safety Technical Supervision Regulations for Gas Cylinders. For further information, see point 6 under section TSG6.7.1.