• 标准号：ASTM E1999-2011
• 发布日期：2011
• 英文题名：Standard Test Method for Analysis of Cast Iron by Spark Atomic Emission Spectrometry
• 英文主题词：cast iron ; optical emission ; spectrometric analysis
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：71.040.50 (Physicochemical methods of analysis)
• 载体形态：7P.;A4
• 中国标准分类号：H11
• 国别：美国材料与试验协会

The chemical composition of cast iron alloys shall be determined accurately in order to insure the desired metallurgical properties. This procedure is suitable for manufacturing control and inspection testing.

1.1 This test method covers the optical emission spectrometric analysis of cast iron by use of the point-to-plane technique for the following elements in the concentration ranges shown (Note 1):

^AQuantitative range in accordance with Practice E1601.

Note 1--The concentration ranges of the elements listed have been established through cooperative testing of reference materials. These concentration ranges can be extended by the use of suitable reference materials.

1.2 This test method covers analysis of specimens having a diameter adequate to overlap the bore of the spark stand opening (to effect an argon seal). The specimen thickness should be sufficient to prevent overheating during excitation. A heat sink backing may be used. The maximum thickness is limited only by the height that the stand will permit.

1.3This 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.