原子吸收法测定煤和焦炭灰烬中痕量元素的标准试验方法

详细信息   

• 标准号：ASTM D3683-2011
• 发布日期：2011
• 英文题名：Standard Test Method for Trace Elements in Coal and Coke Ash by Atomic Absorption
• 英文主题词：coal ; coal ash ; coke ash ; trace elements ; atomic absorption spectroscopy ; Ash--coal/coke ; Beryllium content ; Chromium content ; Coal ash ; Coke ash ; Copper content--coal/coke ; Lead content ; Manganese content ; Nickel content--coal/coke ; Spectrophotometry--atomic absorption ; Vanadium content ; Zinc content--coal/coke
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：75.160.10 (Solid fuels)
• 载体形态：3P.;A4
• 中国标准分类号：D21
• 国别：美国材料与试验协会

文摘

Many trace elements occur in coal, primarily as a part of the mineral matter but may also be associated with the organic matrix. Concern over release of certain trace elements to the environment as a result of coal utilization has made the determination of these elements an increasingly important aspect of coal analysis.

When coal ash is prepared in accordance with this test method, the eight elements listed in 1.1 are quantitatively retained in the ash and are representative of concentrations in the coal. Concentrations of these and other elements in power plant ash, industrial process ash, fly ash, and so forth, may or may not be representative of total quantities in the coal.

1.1 This test method describes a procedure for the determination of beryllium, chromium, copper, manganese, nickel, lead, vanadium, and zinc in coal ash or coke ash.

1.2 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.

1.3 The values stated in SI units () should be regarded as the standard.