Final answer:
Above ground ASME containers, except for vaporizers, must be painted white to reflect heat and minimize the absorption of sunlight. This is a safety requirement to maintain the structural integrity of the container in a range of environmental conditions. Local regulations should be checked for any specific color requirements.
Step-by-step explanation:
In accordance with the standards set by the American Society of Mechanical Engineers (ASME), above ground ASME containers, except for vaporizers, are typically required to be painted with a reflective color. The most common color for these containers is white, as it reflects the majority of radiant heat and minimizes the absorption of sunlight, which can lead to the overheating of the container and the compound inside.
The stipulation to paint containers white comes from safety concerns and the ASME's regulations regarding storage vessels for gases and other materials. The color white serves a practical purpose beyond mere aesthetics; it helps to maintain the structural integrity of the container under varying environmental conditions.
However, there might be regional or company-specific requirements that dictate a different color scheme, so it's important for students and professionals alike to check the local regulations and industry standards that apply to their specific situation.