Standard Test Method for Determination of Lead in Nickel Alloys by Electrothermal Atomic Absorption Spectrometric Method

SIGNIFICANCE AND USE
This test method is intended to be used for the determination of trace levels of lead in nickel and nickel alloys. It is assumed that the procedure will be performed by trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory and proper waste disposal procedures will be followed.
SCOPE
1.1 This test method covers the determination of lead in nickel and nickel alloys in the concentration range of 0.00005 % to 0.001 % by electrothermal atomic absorption spectrometry.
Note 1—If this test method is used to test materials having contents less than 0.0001 % lead, users in different laboratories will experience more than the usual 5 % risk that their results will differ by more than 50 % relative error.
1.2 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 health practices and determine the applicability of regulatory limitations prior to use. For specific hazards associated with the use of this practice see Practices E 50.

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Historical
Publication Date
09-Oct-1996
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ASTM E1834-96(2002) - Standard Test Method for Determination of Lead in Nickel Alloys by Electrothermal Atomic Absorption Spectrometric Method
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E1834–96 (Reapproved 2002)
Standard Test Method for
Determination of Lead in Nickel Alloys by Electrothermal
1
Atomic Absorption Spectrometric Method
This standard is issued under the fixed designation E 1834; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope Trace-Element Content–Electrothermal Atomic Absorp-
tion Spectrometric Method–Part 2: Determination of Lead
1.1 This test method covers the determination of lead in
3
Content
nickel and nickel alloys in the concentration range of
ISO Guide 5725–Accuracy, Trueness, and Precision of
0.00005 % to 0.001 % by electrothermal atomic absorption
3
Measurements, Methods and Results
spectrometry.
NOTE 1—If this test method is used to test materials having contents 3. Summary of Test Method
less than 0.0001 % lead, users in different laboratories will experience
3.1 The sample is dissolved in a mixture of nitric acid,
more than the usual 5 % risk that their results will differ by more than
hydrofluoric acid, and water. The sample and a nickel-
50 % relative error.
ammonium phosphate matrix modifier are injected into the
1.2 This standard does not purport to address all of the
electrothermal atomizer of an atomic absorption spectrometer,
safety concerns, if any, associated with its use. It is the
which is provided with a background corrector. Measurement
responsibility of the user of this standard to establish appro-
of the absorbance is made at a wavelength of 283.3 nm. The
priate safety and health practices and determine the applica-
lead concentration is determined from a calibration curve
bility of regulatory limitations prior to use.Forspecifichazards
established with nickel solutions containing a known amount
associated with the use of this practice see Practices E 50.
of lead.
2. Referenced Documents
4. Significance and Use
2
2.1 ASTM Standards:
4.1 This test method is intended to be used for the determi-
E 50 Practices for Apparatus, Reagents, and Safety Precau-
nation of trace levels of lead in nickel and nickel alloys. It is
tions for Chemical Analysis of Metals, Ores, and Related
assumed that the procedure will be performed by trained
Materials
analysts capable of performing common laboratory practices
E 1184 Practice for Electrothermal (Graphite Furnace)
skillfully and safely. It is expected that the work will be
Atomic Absorption Analysis
performed in a properly equipped laboratory and proper waste
E 1452 Practice for Preparation of Calibration Solutions for
disposal procedures will be followed.
Spectrophotometric and Spectroscopic Atomic Analysis
E 1601 Practice for Conducting an Interlaboratory Study to
5. Apparatus
Evaluate the Performance of an Analytical Method
5.1 Atomic Absorption Spectrometer, with electrothermal
E 1770 Practice for Optimization of ElectrothermalAtomic
atomizer,equippedwithanappropriatebackgroundcorrector,a
Absorption Spectrometric Equipment
signal output device, such as a video display screen, a digital
2.2 ISO Standards:
computer, a printer or strip chart recorder, and an autosampler.
ISO Standard 11437–Nickel Alloys–Determination of
5.2 Pyrolytically Coated Graphite Tubes, grooved, con-
forming to the instrument manufacturer’s specifications.
5.3 Pyrolytic Graphite Platforms, L’vov design, fitted to the
1
This test method is under the jurisdiction of ASTM Committee E01 on
tubes specified in 5.2.
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
5.4 Radiation Source, lead hollow cathode lamp, or elec-
responsibility of Subcommittee E01.08 on Ni and Co and HighTemperatureAlloys.
Current edition approved Oct. 10, 1996. Published December 1996.
trodeless discharge lamp with an appropriate power supply.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute, 25 W. 43rd St., 4th
the ASTM website. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E1834–96 (2002)
6. Instrument Parameters and Criteria 7.5 Nickel, Solution (5.0 g/L)—Transfer 10.0 mL of the
Nickel Stock Solution to a 100 mL volumetric flask. Dilute to
6.1 The atomic absorption spectrometer and electrothermal
the mark with water and mix.
atomizer are satisfactory if after adjustment of the instruments
7.6 Nickel Nitrate-Ammonium Phosphate Matrix M
...

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