Alkalinity of paper as calcium carbonate
(alkaline reserve of paper) T 553 om-15
1.1 This test method covers the determination of the alkalinity or alkaline reserve of paper, or both.
1.2 A qualitative test is described that indicates the presence of carbonate. (The detection limit is approximately 5% calcium carbonate.)
1.3 A quantitative test is described that determines the alkalinity expressed as percent calcium carbonate or alkaline reserve, or both, expressed as moles per kilogram of paper.