Are Cello Bags of Archival Quality?
Yes. Cello Bags are safe for archiving and conservation purposes. Polypropylene is the most widely accepted commercial archival storage material in the United States. It is recommended by both the International Organization for Standardization ISO 10214:1991(E) Sect 4.3 and the American National Standards Institute ANSI IT9.2-1991 Sec 3.3. The polypropylene used in our Cello Bags is naturally acid free and lignin free and conform to PAT ISO standard 18916.