Where must horizontal ASME containers for permanent service be placed?

Horizontal ASME (American Society of Mechanical Engineers) containers designed for permanent service must be placed on supports that are masonry or noncombustible. This requirement is crucial for several reasons:

1. Safety: Masonry and noncombustible materials reduce the risk of fire in the event of a leak or other incident. Since propane and other gases can ignite easily, it is vital to have the container situated on a stable, non-combustible surface to minimize hazards.

2. Stability: These types of containers, when filled with gas or liquid, can be heavy. Masonry or noncombustible supports provide the consistent and reliable structural integrity needed to safely hold the weight of the container, preventing accidents due to shifting or tipping.

3. Regulatory Compliance: Placement on masonry or noncombustible supports aligns with safety codes and regulations governing the installation and handling of LP gas containers. Following these guidelines ensures compliance with industry standards, which helps protect both individuals and property from potential dangers.

In contrast, placing the containers on grassy areas, wooden supports, or elevated platforms may introduce unacceptable risks. Grassy areas can become unstable due to weather conditions, wooden supports are flammable and degrade over time, and elevated