While E1251-17a is the gold standard for spark OES, consider these companion methods:
| Standard | Method | Best For | |----------|--------|-----------| | E3061 | Spark AES (similar, but newer format) | General metal analysis | | E1479 | ICP-OES | Dissolved aluminum solutions | | E607 | Spark AES (old version – replaced) | Historical reference only | astm e125117a pdf
For aluminum alloys, E1251-17a remains the most widely cited in material specifications (e.g., AMS, QQ-A, UNS). While E1251-17a is the gold standard for spark
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