Store your photographic materials safely by using Archival White Paper from Archival Methods as a form of interleaving paper or protective cover for your media. The paper is made from alpha cellulose with 25% cotton fiber content and is calcium carbonate buffered as well as both acid and lignin free for preventing degradation of your photographs. It has a basis weight of 120 gsm and passes the Photographic Activity Test (PAT) as indicated in ISO IT 18916. Additionally, it was made in the USA.
Made from alpha cellulose wood pulp with 25% cotton fiber content to create a durable, white paper with a basis weight of 120 gsm.
Uses calcium carbonate as a buffer with 2-3% alkaline reserve, measured to a pH of 9 ±0.5 and being acid free.
This media passes the PAT (Photographic Activity Test) as indicated by ISO IT 18916, which is formerly ISO 14523 ANSI IT9.16.
Sulfur content is measured to less than 0.0008% reducible sulfur.
Lignin content is measured to TAPPI 236 cm-85 standards and has a Kappa number of less than five.