What is the maximum moisture concentration allowed during the verifier Piping Purity Test?

The maximum moisture concentration allowed during the verifier Piping Purity Test is set at 500 parts per million (ppm). This standard is crucial in maintaining the integrity and safety of medical gas systems. High moisture levels can lead to corrosion of piping, contamination of gases, and various safety hazards in a medical environment.

Understanding the importance of this threshold helps ensure that medical gases remain pure and effective for patient care. When gas systems are tested, exceeding this moisture concentration can indicate potential issues that need to be addressed. Proper maintenance and adherence to these standards are vital for preventing failures in delivery systems, which could compromise patient safety and treatment efficacy. This target of 500 ppm reflects a balance between ensuring that the gas remains uncontaminated while also recognizing practical limits that can be achieved in medical gas delivery systems.