What factor can affect the safety of CNG during storage?

All of the factors listed play significant roles in the safety of compressed natural gas (CNG) during storage.

Storage temperature is critical because extreme temperatures can influence the pressure inside the storage container. High temperatures can lead to increased pressure, which could compromise the integrity of the container or lead to unsafe conditions if proper ventilation or safety features are not in place.

Storage pressure is another vital factor. CNG is stored at high pressures to maintain its gaseous form within a container. If the pressure exceeds the design specifications of the storage container, it can result in failures or leaks, posing safety hazards.

The type of container used is also essential for safe CNG storage. Different materials and construction methods can have varying degrees of strength, durability, and resistance to corrosion or damage. Containers that do not meet safety standards or are inappropriate for high-pressure gas storage can lead to catastrophic failures.

Considering all these factors collectively is necessary for ensuring the secure and safe storage of CNG. Therefore, the comprehensive answer reflects the interconnectedness of these elements in maintaining safety standards during CNG storage.