This test program is designed and used for routine purity testing of liquefied oxygen (LOX) contained in bulk storage tanks at Air Separation Unit (ASU) plants. Sampling typically involves either a customer supplied or ALI rented liquid-phase sampling cylinder (ex.  Cosmodyne^® type). If air-transport is used, the cylinder must be packaged inside a specially designed / IATA-approved O₂ sample shipping case (ex. “supercase”) which can also be rented or purchased.

A special reboiler Oxygen (RELOX) test program is also offered. This program includes special tests for the potential hazardous build up or organic impurities within LOX manufacturing facilities.