Sample Retention Policy

 

Sample Retention Policy for Chemical Tests

GLI does not retain samples for regulatory purposes. We retain hazardous samples for 30 days and non-hazardous samples for 60 days prior to disposal or return to the client.

Water, sludge, food, perishable, and air-sensitive samples are retained under the requested storage conditions for 7 days beyond reporting date.  If you need to have additional tests performed on a sample with special storage conditions, please request them before the 7th day to ensure consistent storage conditions.