Standard Practice for Designation of Shapes and Sizes of Graphite Electrodes (Withdrawn 2013)

SIGNIFICANCE AND USE
This practice is intended as a reference for spectrochemical methods that utilize graphite electrodes. Methods should employ and reference one of the electrode shapes in this practice, but if this is not possible, the method should include electrode specifications for the specific shape used.
This practice should be referred to in a method by including a statement such as the following in the section on Reagents and Materials:
Graphite Electrodes—The electrode(s) shall be of high-purity graphite and conform to type(s) (insert designation from this method) as depicted in Practice E 130.
SCOPE
1.1 This practice covers a number of specific graphite electrode shapes and sizes that are useful in spectrochemical analysis.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
WITHDRAWN RATIONALE
This practice covered a number of specific graphite electrode shapes and sizes that are useful in spectrochemical analysis.
Formerly under the jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, this practice was withdrawn in June 2013. This standard is being withdrawn without replacement due to its limited use by the industry.

General Information

Status
Withdrawn
Publication Date
30-Apr-2008
Withdrawal Date
05-Aug-2013
Current Stage
Ref Project

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ASTM E130-08 - Standard Practice for Designation of Shapes and Sizes of Graphite Electrodes (Withdrawn 2013)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E130 − 08
StandardPractice for
1
Designation of Shapes and Sizes of Graphite Electrodes
This standard is issued under the fixed designation E130; 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 Graphite Electrodes—The electrode(s) shall be of high-
purity graphite and conform to type(s) (insert designation from
1.1 This practice covers a number of specific graphite
this method) as depicted in Practice E130.
electrode shapes and sizes that are useful in spectrochemical
analysis.
6. Classes
1.2 The values stated in inch-pound units are to be regarded
6.1 Seven classes of graphite electrodes are designated as
as the standard. The values given in parentheses are for
follows:
information only.
6.1.1 Class C—Counter Electrodes, for use opposite the
2. Referenced Documents
specimen or opposite the electrode that contains the specimen.
2
6.1.2 Class S—Specimen Electrodes, for use with liquid or
2.1 ASTM Standards:
particulate specimens. Thin-wall cups allow faster burn off of
E135 Terminology Relating to Analytical Chemistry for
graphite and faster consumption of the specimen. Undercut
Metals, Ores, and Related Materials
cups provide greater heating of the specimen.
3. Terminology
6.1.3 Class P—Specimen Electrodes, for use with noncon-
ducting specimens or with specimens that require a center post
3.1 For definitions of terms used in this practice, refer to
that tends to stabilize the excitation.
Terminology E135.
6.1.4 Class PC—Porous Cup Electrodes, for use with liquid
3.2 Definitions of Terms Specific to This Standard:
specimens only.
3.2.1 preform—a descriptive word applied to a commer-
6.1.5 Class D—Specimen Electrodes, of disk shape for use
cially produced spectroscopic electrode which is purified after
with liquid specimens.
machining.
6.1.6 Class VC and VCE—Vacuum Cups and Specimen
Electrodes, consisting of a tubular graphite electrode over
4. Summary of Practice
which is positioned a tetrafluorethylene (TFE) cup which holds
4.1 The practice classifies electrodes by application and
a liquid specimen.
provides dimensional specifications.
6.1.7 Class DCP—Electrodes, for use as anodes on direct-
current plasma spectrometers.
5. Significance and Use
5.1 This practice is intended as a reference for spectro-
7. Dimensions
chemical methods that utilize graphite electrodes. Methods
7.1 The dimensions of the electrodes of the various classes
should employ and reference one of the electrode shapes in this
are given in Fig. 1. Unless exceptions are indicated, the
practice, but if this is not possible, the method should include
following tolerances apply:
electrode specifications for the specific shape used.
±mm ±in.
5.2 This practice should be referred to in a method by
including a statement such as the following in the section on
Outside diameter 0.05 0.002
Length 0.41 0.016
Reagents and Materials:
Cavity, inside diameter 0.08 0.003
Cavity, depth 0.08 0.003
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
Neck, outside diameter 0.13 0.005
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Neck, location 0.13 0.005
Subcommittee E01.20 on Fundamental Practices. Neck, length 0.13 0.005
Current edition approved May 1, 2008. Published May 2008. Originally Concentricity, total indicator reading:
Holes under 12.7 mm (0.5 in.) deep 0.13 0.005
approved in 1957. Last previous edition approved in 2003 as E130 – 87 (2003).
and undercuts
DOI: 10.1520/E0130-08.
2 Holes over 12.7 mm (0.5 in.) deep 0.25 0.010
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Rotating disks, inside diameter 0.03 0.001
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Rotating disks, thickness 0.13 0.005
Standards volume information, refer to the standard’s Document Summary page on
Boiler caps, inside diameter 0.02 0.001
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E130 − 08
Porous cups, bottom thickness: ±mm ±in.
Under 25.4 mm (1 in.) long +0.05 +0.002
−0.00 −0.000 Cavity, inside diameter 0.01 0.0005
Over 25.4 mm (1 in.) long +0.08 +0.003 Cavity, depth 0.05 0.002
−0.00 −0.000 Neck, outside diameter 0.05 0.002
Angle ±0.5° Neck, location 0.08 0.003
Neck, length 0.08 0.003
7.2 Certain methods, such as those employing carrier dis-
Rod, outside diameter 0.03 0.001
tillation techniques, may require closer tolerances than those
specified in 7.1. The following special tolerances will
...

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