ASTM B954-23
(Test Method)Standard Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission Spectrometry
Standard Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission Spectrometry
SIGNIFICANCE AND USE
5.1 The metallurgical properties of magnesium and its alloys are highly dependant on chemical composition. Precise and accurate analyses are essential to obtaining desired properties, meeting customer specifications and helping to reduce scrap due to off-grade material.
5.2 This test method is applicable to chill cast specimens as defined in Practice B953 and can also be applied to other types of samples provided that suitable reference materials are available.
SCOPE
1.1 This test method describes the analysis of magnesium and its alloys by atomic emission spectrometry. The magnesium specimen to be analyzed may be in the form of a chill cast disk, casting, sheet, plate, extrusion or some other wrought form or shape. The elements covered in the scope of this method are listed in the table below.
Element
Mass Fraction Range (Wt %)
Aluminum
0.001 to 12.0
Beryllium
0.0001 to 0.01
Boron
0.0001 to 0.01
Cadmium
0.0001 to 0.05
Calcium
0.0005 to 0.05
Cerium
0.01 to 3.0
Chromium
0.0002 to 0.005
Copper
0.001 to 0.05
Dysprosium
0.01 to 1.0
Erbium
0.01 to 1.0
Gadolinium
0.01 to 3.0
Iron
0.001 to 0.06
Lanthanum
0.01 to 1.5
Lead
0.005 to 0.1
Lithium
0.001 to 0.05
Manganese
0.001 to 2.0
Neodymium
0.01 to 3.0
Nickel
0.0005 to 0.05
Phosphorus
0.0002 to 0.01
Praseodymium
0.01 to 0.5
Samarium
0.01 to 1.0
Silicon
0.002 to 5.0
Silver
0.001 to 0.2
Sodium
0.0005 to 0.01
Strontium
0.01 to 4.0
Tin
0.002 to 0.05
Titanium
0.001 to 0.02
Yttrium
0.02 to 7.0
Ytterbium
0.01 to 1.0
Zinc
0.001 to 10.0
Zirconium
0.001 to 1.0
Note 1: The mass fraction ranges given in the above scope are estimates based on two manufacturers observations and data provided by a supplier of atomic emission spectrometers. The range shown for each element does not demonstrate the actual usable analytical range for that element. The usable analytical range may be extended higher or lower based on individual instrument capability, spectral characteristics of the specific element wavelength being used and the availability of appropriate reference materials.
1.2 This test method is suitable primarily for the analysis of chill cast disks as described in Sampling Practice B953. Other forms may be analyzed, provided that: (1) they are sufficiently massive to prevent undue heating, (2) they allow machining to provide a clean, flat surface which creates a seal between the specimen and the spark stand, and (3) reference materials of a similar metallurgical condition (spectrochemical response) and chemical composition are available.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific safety and health statements are given in Section 10.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B954 − 23
Standard Test Method for
Analysis of Magnesium and Magnesium Alloys by Atomic
1
Emission Spectrometry
This standard is issued under the fixed designation B954; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
element does not demonstrate the actual usable analytical range for that
1. Scope
element. The usable analytical range may be extended higher or lower
1.1 This test method describes the analysis of magnesium
based on individual instrument capability, spectral characteristics of the
and its alloys by atomic emission spectrometry. The magne- specific element wavelength being used and the availability of appropriate
reference materials.
sium specimen to be analyzed may be in the form of a chill cast
disk, casting, sheet, plate, extrusion or some other wrought
1.2 This test method is suitable primarily for the analysis of
form or shape. The elements covered in the scope of this
chill cast disks as described in Sampling Practice B953. Other
method are listed in the table below.
forms may be analyzed, provided that: (1) they are sufficiently
Element Mass Fraction Range (Wt %) massive to prevent undue heating, (2) they allow machining to
Aluminum 0.001 to 12.0
provide a clean, flat surface which creates a seal between the
Beryllium 0.0001 to 0.01
specimen and the spark stand, and (3) reference materials of a
Boron 0.0001 to 0.01
similar metallurgical condition (spectrochemical response) and
Cadmium 0.0001 to 0.05
Calcium 0.0005 to 0.05
chemical composition are available.
Cerium 0.01 to 3.0
Chromium 0.0002 to 0.005 1.3 This standard does not purport to address all of the
Copper 0.001 to 0.05
safety concerns, if any, associated with its use. It is the
Dysprosium 0.01 to 1.0
responsibility of the user of this standard to establish appro-
Erbium 0.01 to 1.0
Gadolinium 0.01 to 3.0
priate safety, health, and environmental practices and deter-
Iron 0.001 to 0.06
mine the applicability of regulatory limitations prior to use.
Lanthanum 0.01 to 1.5
Specific safety and health statements are given in Section 10.
Lead 0.005 to 0.1
Lithium 0.001 to 0.05 1.4 This international standard was developed in accor-
Manganese 0.001 to 2.0
dance with internationally recognized principles on standard-
Neodymium 0.01 to 3.0
ization established in the Decision on Principles for the
Nickel 0.0005 to 0.05
Phosphorus 0.0002 to 0.01 Development of International Standards, Guides and Recom-
Praseodymium 0.01 to 0.5
mendations issued by the World Trade Organization Technical
Samarium 0.01 to 1.0
Barriers to Trade (TBT) Committee.
Silicon 0.002 to 5.0
Silver 0.001 to 0.2
Sodium 0.0005 to 0.01
2. Referenced Documents
Strontium 0.01 to 4.0
2
2.1 ASTM Standards:
Tin 0.002 to 0.05
Titanium 0.001 to 0.02
B953 Practice for Sampling Magnesium and Magnesium
Yttrium 0.02 to 7.0
Alloys for Spectrochemical Analysis
Ytterbium 0.01 to 1.0
Zinc 0.001 to 10.0 E135 Terminology Relating to Analytical Chemistry for
Zirconium 0.001 to 1.0
Metals, Ores, and Related Materials
NOTE 1—The mass fraction ranges given in the above scope are E305 Practice for Establishing and Controlling Spark
estimates based on two manufacturers observations and data provided by
Atomic Emission Spectrochemical Analytical Curves
a supplier of atomic emission spectrometers. The range shown for each
E406 Practice for Using Controlled Atmospheres in Atomic
Emission Spectrometry
1
This test method is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
2
Magnesium Alloy Cast and Wrought Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2023. Published April 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2007. Last previous edition approved in 2015 as B954 – 15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/B0954-23. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B954 − 23
E826 Practice for Testing Homogeneity of a Metal Lot or 4.2 Three different methods of calibration defined in 3.2.1,
Batch in Solid Form by Spark Atomic Emission Spec- 3.2.2 and 3.2.3, are capable of giving equivalent precision,
3
trometry (Withdrawn 202
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B954 − 15 B954 − 23
Standard Test Method for
Analysis of Magnesium and Magnesium Alloys by Atomic
1
Emission Spectrometry
This standard is issued under the fixed designation B954; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method describes the analysis of magnesium and its alloys by atomic emission spectrometry. The magnesium
specimen to be analyzed may be in the form of a chill cast disk, casting, sheet, plate, extrusion or some other wrought form or
shape. The elements covered in the scope of this method are listed in the table below.
Element Mass Fraction Range (Wt %)
Aluminum 0.001 to 12.0
Beryllium 0.0001 to 0.01
Boron 0.0001 to 0.01
Cadmium 0.0001 to 0.05
Calcium 0.0005 to 0.05
Cerium 0.01 to 3.0
Chromium 0.0002 to 0.005
Copper 0.001 to 0.05
Dysprosium 0.01 to 1.0
Erbium 0.01 to 1.0
Gadolinium 0.01 to 3.0
Iron 0.001 to 0.06
Lanthanum 0.01 to 1.5
Lead 0.005 to 0.1
Lithium 0.001 to 0.05
Manganese 0.001 to 2.0
Neodymium 0.01 to 3.0
Nickel 0.0005 to 0.05
Phosphorus 0.0002 to 0.01
Praseodymium 0.01 to 0.5
Samarium 0.01 to 1.0
Silicon 0.002 to 5.0
Silver 0.001 to 0.2
Sodium 0.0005 to 0.01
Strontium 0.01 to 4.0
Tin 0.002 to 0.05
Titanium 0.001 to 0.02
Yttrium 0.02 to 7.0
Ytterbium 0.01 to 1.0
Zinc 0.001 to 10.0
Zirconium 0.001 to 1.0
NOTE 1—The mass fraction ranges given in the above scope are estimates based on two manufacturers observations and data provided by a supplier of
atomic emission spectrometers. The range shown for each element does not demonstrate the actual usable analytical range for that element. The usable
analytical range may be extended higher or lower based on individual instrument capability, spectral characteristics of the specific element wavelength
1
This test method is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on Magnesium
Alloy Cast and Wrought Products.
Current edition approved Oct. 1, 2015April 1, 2023. Published November 2015April 2023. Originally approved in 2007. Last previous edition approved in 20072015 as
B954 – 07.B954 – 15. DOI: 10.1520/B0954-15.10.1520/B0954-23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B954 − 23
being used and the availability of appropriate reference materials.
1.2 This test method is suitable primarily for the analysis of chill cast disks as described in Sampling Practice B953. Other forms
may be analyzed, provided that: (1) they are sufficiently massive to prevent undue heating, (2) they allow machining to provide
a clean, flat surface which creates a seal between the specimen and the spark stand, and (3) reference materials of a similar
metallurgical condition (spectrochemical response) and chemical composition are available.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use. Specific safety and health statements are given in Section 10.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
B953 Practice for Sampling Magnesium and Magnesium Alloys for Spectrochemical Analysis
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E305 Practice for Establishing and Controlling Spark Atomic Emission Spectrochemical Analytical Curves
E406 Practice for Using Controlled Atmospheres in Atomic Emission Spectrometry
E826 Practice for Testing Homogeneity of a Metal Lot or Batch in Solid Form by Spark Atomic Emission Spectrometry
3
(Withdrawn 2023)
E1257 Guide for Evaluating Grinding Materials Used for Surface Preparation in Spectrochemical Analysis
3
E1329 Practice for Verification and Use of Control Charts in Spectroc
...
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