What specific (e.g., 2000, 6000, 7000) you test most frequently
The standard defines specific concentration ranges for each element to ensure the testing equipment operates within its validated limits. Key Requirements Detailed in the PDF Document
: Organizations like IHS Markit, Techstreet, or ANSI provide licensed copies of the document.
Note: Downloading unauthorized or "free" PDF versions from unverified file-sharing sites poses significant risks, including outdated data, formatting errors, legal non-compliance during quality audits, and malware infections. Summary of Technical Parameters Specification under ASTM E1251 Spark Atomic Emission Spectrometry (Spark-AES) Matrix Aluminum and Aluminum-Base Alloys Atmosphere High-purity Argon shielding gas Sample Prep Lathe turning or fly-cutting (Milling) Key Output Quantitative elemental weight percentage (wt%) astm e125117a pdf
For the exact content and details of ASTM E1251-17A, you would need to access the standard directly through the ASTM website or a library that provides access to ASTM standards. Purchasing or subscribing to ASTM's Compass platform would offer direct access to the document and any updates.
The sample is excited by a high-voltage spark in a controlled atmosphere (typically Argon). The light emitted by the excited atoms is resolved into its constituent spectral lines, and the intensity of each element's spectral line is measured. 4. Calibration and Quantification
The standard applies to aluminum in several forms, including chill cast disks, castings, foil, sheets, plates, and extrusions. It covers a wide range of elements critical to aluminum alloying, such as: What specific (e
: Indicates a subsequent revision or amendment made within that same year. The Role of Spark Atomic Emission Spectrometry (Spark-AES)
Allows operators to check molten bath composition in real-time, adjusting elements before pouring ingots or billets.
ASTM standards are highly regarded because they publish the results of rigorous interlaboratory studies. The E1251-17a PDF includes statistical data on repeatability (variation under the same conditions) and reproducibility (variation across different labs) so that facilities can benchmark their own testing performance. Why Industries Rely on This Standard The light emitted by the excited atoms is
The following table lists the elements and the mass fraction ranges that were established through cooperative laboratory testing (ILS) for this standard.
A: Yes. Using a 2007 version when the customer calls out 2017a could be a non-conformance. Always specify the year in your test report.
: Advanced software compares these intensities against known calibration curves to calculate the exact percentage of each element present. Elements Covered under ASTM E1251-17a
: Analysis of Mercury (Hg) is explicitly not recommended using this method due to intense iron interference, which can lead to inaccurate reporting. Significance and Use in Industry