1.1本试验方法包括测定煤中任何形式的二氧化碳，如矿物碳酸盐，其中二氧化碳通过矿物酸的作用释放。它适用于高碳酸盐和低碳酸盐煤。 1.2以国际单位制表示的数值应视为标准。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 许多煤中含有少量矿物碳酸盐，一些煤中含有相对较多的矿物碳酸盐。本试验方法的目的是测定这些碳酸盐。发现的二氧化碳值用于估算矿物质含量，尤其是CaCO 3. 和MgCO 3. ，高碳酸盐煤。 图1二氧化碳测定装置

1.1 This test method covers the determination of carbon dioxide in coal in any form, such as mineral carbonate, from which carbon dioxide is released by action of mineral acids. It applies to high-carbonate and low-carbonate coals. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== Small amounts of mineral carbonates occur in many coals and comparatively large amounts in some coals. The determination of these carbonates is the purpose of this test method. The value found for carbon dioxide is used to estimate the mineral matter content, particularly CaCO 3 and MgCO 3 , of high-carbonate coals. FIG. 1 Apparatus for the Determination of Carbon Dioxide