ASTM C715-90(2000)

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

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 1--An alternative X-ray emission spectrometry method is Test Method C810.
1.2 This standard does not purport to address all of the safety problems 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-Dec-1999
• 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(1996) - Standard Test Method for Nickel on Steel for Porcelain Enameling by Photometric Analysis
• Effective Date: 01-Jan-2000
• Replaced By: ASTM C715-90(2006) - Standard Test Method for Nickel on Steel for Porcelain Enameling by Photometric Analysis
• Effective Date: 01-Apr-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2000)
Standard Test Method for
Nickel on Steel for Porcelain Enameling by Photometric
Analysis
This standard is issued under the fixed designation C 715; 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 an inside diameter of 1.35 in. (34.3 mm) in order to encircle an
2 2
area of 0.01 ft (0.000929 m ), a wall configuration as shown
1.1 This test method covers the determination of the amount
in Fig. 1, and the lower portion beveled at a 45° angle (0.78
of nickel deposited on sheet steel during its preparation for
rad) to reduce the contact area and ensure a better seal. The
porcelain enameling. It is a photometric method commonly
metal outer ring shall weigh about 3.5 lb (1.5 kg), suitably
used on production parts and is suitable for determining the
machined to fit over the top of the rubber ring as shown in Fig.
heavier nickel deposits that may be obtained during the
1.
processing of steel for one-coat enameling.
4.2.1 The exact area covered by the rubber ring will
NOTE 1—An alternative X-ray emission spectrometry method is Test
gradually increase as the rubber ring itself is consumed by the
Method C 810.
acidreagentused.Inthemostaccurateanalysis,theareaetched
1.2 This standard does not purport to address all of the
by the rubber ring shall be calculated occasionally, factored
safety concerns, if any, associated with its use. It is the
against the prescribed area, and that number applied to the
responsibility of the user of this standard to establish appro-
reading obtained from the graph.
priate safety and health practices and determine the applica-
4.3 Aspirator, consisting of a calibrated 500-mL flask,
bility of regulatory limitations prior to use.
equipped with a twohole stopper, an aspirator bulb, and a
suction tube formed from 0.079-in. (2-mm) inside diameter
2. Referenced Documents
capillary glass tubing.
2.1 ASTM Standards:
5. Reagents and Materials
C 810 Test Method for Nickel on Steel for Porcelain Enam-
eling by X-Ray Emission Spectrometry
5.1 Reagent grade chemicals shall be used in all tests.
E 30 Test Methods for Chemical Analysis of Steel, Cast
Unless otherwise indicated, it is intended that all reagents shall
Iron, Open-Hearth Iron, and Wrought Iron
conform to the specifications of the Committee of Analytical
E 60 Practice for Photometric and Spectrophotometric
Reagents of the American Chemical Society. Other grades
Methods for Chemical Analysis of Metals
may be used, provided it is first ascertained that the reagent is
of sufficiently high purity to permit its use without lessening
3. Significance and Use
the accuracy of the determination.
3.1 This test method is primarily used to control the nickel
5.2 Purity of Water—Use distilled or deionized water.
dipping operation to ensure that the desired level of nickel
5.3 Ammonium Hydroxide (sp gr 0.90)— Concentrated
deposition is attained. It is also used to prepare test plates used
ammonium hydroxide (NH OH).
for calibration in Test Method C 810.
5.4 Ammonium Persulfate—(NH ) S O .
4 2 2 8
5.5 Dimethylglyoxime—Prepare a 1 % solution of dimeth-
4. Apparatus
ylglyoxime in methyl alcohol or a 2.62 % solution of sodium
4.1 Photoelectric Photometer, conforming to Practice E 60.
dimethylglyoximate in water (store in a polyethylene bottle).
4.2 Weighted Rubber Ring Assembly, required to confine
5.6 Hydrochloric Acid (1+5)—Dilute 1 vol of concentrated
stripping agents to a definite area, consisting of a molded
hydrochloric acid (HCl, sp gr 1.19) with 5 vol of water.
rubber ring and a metal outer ring. The rubber ring shall have
5.7 Nickel Sulfate, Standard Solution— Dissolve 0.448 g of
nickel sulfate (NiSO ·6H O) in water. When the material is
4 2
This test method is under the jurisdiction ofASTM Committee B08 on Metallic
and Inorganic Coatings and is the direct responsibility of Subcommittee B08.12 on Reagent Chemicals, American Chemical Society Specifications, American
Materials for Porcelain Enamel and Ceramic-Metal Systems. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Current edition approved Feb. 23, 1990. Published April 1990. Originally listed by the American Chemical Society, see Analar Standards for Laboratory
published as C 715 – 77. Last previous edition C 715 – 77 (1983). Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Annual Book of ASTM Standards, Vol 02.05. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
Annual Book of ASTM Standards, Vol 03.05. MD.
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C715
8. Determinations of Nickel Coating Masses
8.1 Sampling a Nickel-Coated Steel Surface:
8.1.1 Place t
...