What regulatory agency is responsible for determining purity standards for medical gases?

The Food and Drug Administration (FDA) is the regulatory agency responsible for determining purity standards for medical gases. The FDA's role encompasses ensuring the safety and efficacy of medical products, including medical gases used in healthcare settings. This involves setting standards for the production, labeling, and quality control of these gases to ensure that they meet required purity levels, which is crucial for patient safety and effective treatment. The agency conducts inspections and monitors adherence to regulations, thereby safeguarding public health.

The other entities mentioned, while they may have important roles in various aspects of gas safety and transportation, do not have the regulatory authority that the FDA possesses regarding medical gas purity. The Compressed Gas Association focuses more on industry standards and best practices, the Division of Transportation deals with the logistics and safety of transporting hazardous materials, and the National Fire Prevention Agency concentrates on fire safety regulations rather than the specific purity standards for medical gases.