What percentage of ammonia purity would most industry advocates begin to find concerning based on test results?

In the context of ammonia purity, a purity level of 5% generally raises concerns among industry professionals. This threshold is considered significant because ammonia concentrations below this level can indicate potential contamination or operational inefficiencies. Contaminated ammonia may lead to reduced effectiveness of the chemical in its intended applications, including its role as a refrigerant or in various chemical processes. The acceptable purity levels for ammonia in industrial applications typically range from approximately 99% to 100%. Therefore, encountering a level of 5% suggests the possibility of impurities that could compromise performance and safety, warranting further investigation and corrective measures.