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ASTM E1251-25

Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
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ASTM E1251-25

Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry

PUBLISH DATE 2025
PAGES 10
ASTM E1251-25

1.1 This test method describes the analysis of aluminum and its alloys by spark-atomic emission spectrometry (Spark-AES). The aluminum specimen to be analyzed may be in the form of a chill cast disk, casting, foil, sheet, plate, extrusion, or some other wrought form or shape.

The elements covered in the scope of this method are listed as follows.

Element

Tested Mass Fraction Range
(Wt %)

Antimony

   0.001 to 0.003

Arsenic

   0.001 to 0.006

Beryllium

   0.0004 to 0.24

Bismuth

   0.03 to 0.6

Boron

   0.0006 to 0.009

Calcium

   0.0002 to 0.04

Chromium

   0.001 to 0.23

Cobalt

   0.4 to 1.60

Copper

   0.001 to 5.5

Gallium

   0.02 to 0.11

Iron

   0.2 to 0.5

Lead

   0.04 to 0.6

Lithium

   0.0003 to 2.1

Magnesium

   0.03 to 5.4

Manganese

   0.001 to 1.2

Nickel

   0.005 to 2.6

Phosphorus

   0.003 to 0.017

Silicon

   0.07 to 16

Sodium

   0.003 to 0.02

5.1 The metallurgical properties of aluminum and its alloys are highly dependent on chemical composition.

Precise and accurate analyses are essential to obtaining desired properties, meeting customer specifications, and minimizing scrap due to off-grade material.

5.2 This test method is applicable to chill cast specimens as defined in Practices E716 and can also be applied to other types of samples provided that suitable reference materials are available.

Also, other sample forms can be melted and cast into a disk, using an appropriate mold, as described in Practices E716.

However, some elements (for example, magnesium) readily form oxides, while others (for example, sodium, lithium, calcium, and strontium) are volatile, and may be lost to varying degrees during the melting process.

SDO ASTM: ASTM International
Document Number E1251
Publication Date Oct. 1, 2025
Language en - English
Page Count 10
Revision Level 25
Supercedes
Committee E01.04
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