PRT provides a Certificate of Conformance with every aviation distributor’s order. Below is a sample Certificate of Conformance:
This is to certify that the following 1211-1301 Halon Fire Extinguishers ( serial numbers listed)are rated and listed by Underwriter’s Laboratory. These units meet A.N.S.I./UL Standards 711 and 1093 as tested and are listed by Underwriter’s Laboratory. They have a shelf life of 12 years from the date of manufacture.