ASTM C715-90(2006)

Standard Test Method for Nickel on Steel for Porcelain Enameling by Photometric Analysis

SIGNIFICANCE AND USE
This test method is primarily used to control the nickel dipping operation to ensure that the desired level of nickel deposition is attained. It is also used to prepare test plates used for calibration in Test Method C 810.
SCOPE
1.1 This test method covers the determination of the amount of nickel deposited on sheet steel during its preparation for porcelain enameling. It is a photometric method commonly used on production parts and is suitable for determining the heavier nickel deposits that may be obtained during the processing of steel for one-coat enameling. Note 1An alternative X-ray emission spectrometry method is Test Method C 810.
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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2006
• ICS: 25.220.20 - Surface treatment
• Technical Committee: B08 - Metallic and Inorganic Coatings
• Drafting Committee: B08.12 - Materials for Porcelain Enamel and Ceramic-Metal Systems

Relations

• Replaces: ASTM C715-90(2000) - Standard Test Method for Nickel on Steel for Porcelain Enameling by Photometric Analysis
• Effective Date: 01-Apr-2006
• Replaced By: ASTM C715-90(2011)e1 - Standard Test Method for Nickel on Steel for Porcelain Enameling by Photometric Analysis
• Effective Date: 01-Apr-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C715–90(Reapproved 2006)
Standard Test Method for
Nickel on Steel for Porcelain Enameling by Photometric
1
Analysis
This standard is issued under the fixed designation C715; 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 4.2 Weighted Rubber Ring Assembly, required to confine
stripping agents to a definite area, consisting of a molded
1.1 This test method covers the determination of the amount
rubber ring and a metal outer ring. The rubber ring shall have
of nickel deposited on sheet steel during its preparation for
an inside diameter of 1.35 in. (34.3 mm) in order to encircle an
porcelain enameling. It is a photometric method commonly
2 2
area of 0.01 ft (0.000929 m ), a wall configuration as shown
used on production parts and is suitable for determining the
in Fig. 1, and the lower portion beveled at a 45° angle (0.78
heavier nickel deposits that may be obtained during the
rad) to reduce the contact area and ensure a better seal. The
processing of steel for one-coat enameling.
metal outer ring shall weigh about 3.5 lb (1.5 kg), suitably
NOTE 1—An alternative X-ray emission spectrometry method is Test
machined to fit over the top of the rubber ring as shown in Fig.
Method C810.
1.
1.2 This standard does not purport to address all of the
4.2.1 The exact area covered by the rubber ring will
safety concerns, if any, associated with its use. It is the
gradually increase as the rubber ring itself is consumed by the
responsibility of the user of this standard to establish appro-
acidreagentused.Inthemostaccurateanalysis,theareaetched
priate safety and health practices and determine the applica-
by the rubber ring shall be calculated occasionally, factored
bility of regulatory limitations prior to use.
against the prescribed area, and that number applied to the
reading obtained from the graph.
2. Referenced Documents
4.3 Aspirator, consisting of a calibrated 500-mL flask,
2
2.1 ASTM Standards:
equipped with a twohole stopper, an aspirator bulb, and a
C810 Test Method for Nickel on Steel for Porcelain Enam-
suction tube formed from 0.079-in. (2-mm) inside diameter
eling by X-Ray Emission Spectrometry
capillary glass tubing.
E30 Test Methods for Chemical Analysis of Steel, Cast
3
5. Reagents and Materials
Iron, Open-Hearth Iron, and Wrought Iron
E60 Practice for Analysis of Metals, Ores, and Related
5.1 Reagent grade chemicals shall be used in all tests.
Materials by Molecular Absorption Spectrometry
Unless otherwise indicated, it is intended that all reagents shall
conform to the specifications of the Committee of Analytical
3. Significance and Use
4
Reagents of the American Chemical Society. Other grades
3.1 This test method is primarily used to control the nickel
may be used, provided it is first ascertained that the reagent is
dipping operation to ensure that the desired level of nickel
of sufficiently high purity to permit its use without lessening
deposition is attained. It is also used to prepare test plates used
the accuracy of the determination.
for calibration in Test Method C810.
5.2 Purity of Water—Use distilled or deionized water.
5.3 Ammonium Hydroxide (sp gr 0.90)—Concentrated am-
4. Apparatus
monium hydroxide (NH OH).
4
4.1 Photoelectric Photometer, conforming to Practice E60.
5.4 Ammonium Persulfate—(NH ) S O .
4 2 2 8
5.5 Dimethylglyoxime—Prepare a 1 % solution of dimeth-
1
This test method is under the jurisdiction ofASTM Committee B08 on Metallic
ylglyoxime in methyl alcohol or a 2.62 % solution of sodium
and Inorganic Coatings and is the direct responsibility of Subcommittee B08.12 on
dimethylglyoximate in water (store in a polyethylene bottle).
Materials for Porcelain Enamel and Ceramic-Metal Systems.
Current edition approved April 1, 2006. Published April 2006. Originally
approved in 1977. Last previous edition approved in 2000 as C715 – 90 (2000).
4
DOI: 10.1520/C0715-90R06. Reagent Chemicals, American Chemical Society Specifications, American
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Chemical Society, Washington, DC. For suggestions on the testing of reagents not
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM listed by the American Chemical Society, see Analar Standards for Laboratory
Standards volume information, refer to the standard’s Document Summary page on Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
the ASTM website. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
3
Withdrawn. MD.
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