What test is performed on oxygen cylinders to check for odor upon opening the valve?

The sniff test is a qualitative assessment used specifically to detect the presence of contaminants or gases in oxygen cylinders. When the valve of an oxygen cylinder is opened, a trained individual can assess for any unusual or foreign odors that might signify an issue such as a leak or contamination. This method is quick and sensitive, allowing personnel to identify potentially hazardous conditions that may not be evident through visual inspections or other tests.

Using the sniff test is essential because the presence of impurities in industrial-grade oxygen can lead to dangerous reactions, especially in environments where oxygen is used in conjunction with flammable materials. Thus, the ability to quickly detect odors ensures safety procedures are followed proactively. This emphasizes the importance of sensory checks in handling gases, particularly those essential for medical or high-tech applications.