ASTM C25 - 19

    Стандартные методы химического анализа известняка, негашеной и гашеной извести

    Active Standard ASTM C25 Developed by Subcommittee: C07.05

    Book of Standards Volume: 04.01

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    Significance and Use

    4.1 These test methods provide accurate and reliable analytical procedures to determine the chemical constituents of limestone, quicklime, and hydrated lime (see Note 1). The percentages of specific constituents which determine a material's quality or fitness for use are of significance depending upon the purpose or end use of the material. Results obtained may be used in relation to specification requirements.

    4.2 Because quicklime and hydrated lime quickly absorb water and carbon dioxide from the air, precision and bias are extremely dependent upon precautions taken during sample preparation and analysis to minimize excessive exposure to ambient conditions.

    Note 1: These test methods can be applied to other calcareous materials if provisions are made to compensate for known interferences.