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Significance and Use
4.2 Liming materials have a specific basicity factor or measure of alkalinity which can be used for comparing their relative neutralizing power. It avoids dependence on chemical analysis and is determined as grams of calcium oxide equivalents per kilogram of liming material.
4.3 Likewise, specific waste acids have an acid value that can be expressed as grams of hydrochloric acid equivalent per litre of acid waste. This value is related on a stoichiometric basis to lime neutralization requirements of a liquid acid waste.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C50 Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products
E70 Test Method for pH of Aqueous Solutions With the Glass Electrode
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111607(Unslaked lime); 30111604(Hydrated lime)
ASTM C400-98(2013), Standard Test Methods for Quicklime and Hydrated Lime for Neutralization of Waste Acid, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top