$86.50 (as of 06/01/2020 06:27 PST details )
Features:
- 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