本试验方法包括测定纸张的碱度或碱储备量，或同时测定两者。描述了表明碳酸盐存在的定性测试。（检测限约为5%碳酸钙。）描述了一种定量测试，该测试以碳酸钙百分比或碱度储备（或两者兼有）表示碱度，以每千克纸张的摩尔数表示。

This test method covers the determination of the alkalinity or alkaline reserve of paper, or both.A qualitative test is described that indicates the presence of carbonate. (The detection limit is approximately 5% calcium carbonate.)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.