Archival Methods Archival Tissue, 16x20', 480 Sheets #45006

Buffered with calcium carbonate 2-3% alkaline reserve, pH 9 +/-0.5,.Acid-free. Un-Buffered, pH 6.5 - 7.2 No calcium carbonate -Acid-free. Light weight 20-34g/per square meter 1.5 mil thicknesses Caliper 0.0012 Passes the PAT (Photographic Activity Test) ISO 14523 (formerly ANSI IT9.16). and TAPPI T444 silver tarnish test Sulphur Content (Maximum) 0.0004

Archival Methods Archival Tissue, 16x20', 480 Sheets #45006

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