ASTM E1251-17a is the standard test method for the analysis of aluminum and aluminum alloys using spark atomic emission spectrometry (Spark-AES). This method is essential for determining the chemical composition of aluminum specimens in various forms, including chill cast disks, castings, foil, sheets, and extrusions. Core Scope and Applications
Correct preparation is vital to ensure a proper "seal" between the specimen and the spark stand. ASTM International : Ideally, use chill cast disks (standardized under Surface Finish
While the PDF is not free, it is an essential investment for any metallurgical laboratory conducting ISO 17025-accredited testing on aluminum and magnesium alloys. The standard ensures that your spark emission spectrometer provides accurate, repeatable, and globally recognized results. astm e125117a pdf
Note: Mercury (Hg) is specifically excluded from this standard due to spectral interference from iron. ⚙️ Technical Requirements
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Q: Is E1251-17a still active?
A: As of this writing, yes. Always check ASTM’s website for the latest revision (e.g., E1251-24 or higher). ASTM E1251-17a is the standard test method for
Material Suitability: It is primarily designed for chill cast disks but can be applied to other massive forms like ingots and billets, provided they have a clean, flat surface for machining and a similar metallurgical history to the reference materials used.