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ASTM E1251-17a is the Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry (Spark-AES)

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Example (hypothetical from memory): For Si at 5.0% in aluminum, r might be 0.05% absolute, R might be 0.12% absolute.

Bias: The method has no absolute bias because it is comparative (relative to CRMs). However, bias can arise from improper matrix matching or uncorrected interferences.

The standard establishes the quantitative elemental analysis of aluminum using Spark-AES. Infinita Lab astm e125117a pdf

is available for purchase from authorized standards organizations: ASTM E1251-17a is the Standard Test Method for