ASTM E1659-05
(Test Method)Standard Test Methods Coating Weight and Chemical Analysis of Zinc-Nickel Alloy Electrolytically Coated on Steel Sheet
Standard Test Methods Coating Weight and Chemical Analysis of Zinc-Nickel Alloy Electrolytically Coated on Steel Sheet
SIGNIFICANCE AND USE
These test methods for the chemical analysis of zinc-nickel alloy coating on sheet steel are primarily intended as referee methods to test such materials for compliance with compositional specifications such as found in Specification A 918, particularly those under the jurisdiction of ASTM Committee A05 on Metallic-Coated Iron and Steel Products. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.
These test methods must be applied twice, once to each side of the specimen if coating weight and composition are required for both sides of a coated sheet. Two separate specimens are required for this purpose.
SCOPE
1.1 These test methods cover independently the chemical analysis of each surface of zinc-nickel alloy electrolytically coated on steel sheet. The coatings have chemical compositions within the following limits:
AnalyteConcentration RangeCoating Weight0.0 to 80 g/m2Nickel7.0 to 17.0 %
1.2 These test methods are in the following sections:SectionsCoating Weight, by the Weigh-Strip-Weigh Method (20.0 to 45.0 g/m2)Nickel by the Atomic Absorption Method (11.0 to 13.5 % of Coating Weight Ranging from 20 to 45 g/m2)
1.3 The values stated in SI units are to be regarded as standard. In some cases, exceptions allowed in Practice E 380 are also used.
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.
1.4 This test method provides a procedure for determining independently the weight of coating on each surface of zinc-nickel alloy-coated sheet steel, in coating masses from 20 to 45 g/m2 (Note 0).Note 0
The upper limit of the scope has been set at 45 g/m2 because test materials with higher coating weight were not available for testing in accordance with Practice E 173. However, recognizing the simplicity of the weigh-strip-weigh technique, materials with higher coating weights can be tested following this procedure. Users of this test method are cautioned that use of it for coating weight determinations above 45 g/m 2 is not supported by interlaboratory testing.
1.5 This test method covers the determination of nickel in concentrations from 11.0 to 13.5 % in zinc-nickel coatings (). Note 2
The upper limit of the scope has been set at 13.5 % because sufficient test materials containing higher nickel were unavailable in accordance with Practice E 173. However, recognizing the calibration technique of atomic absorption spectrophotometer, materials with higher nickel content may be tested following this procedure. Users of this test method are cautioned that use of it for nickel determination out of the scope is not supported by the interlaboratory testing.
General Information
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Standards Content (Sample)
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Designation:E1659–05
Standard Test Methods for
Coating Weight and Chemical Analysis of Zinc-Nickel Alloy
1
Electrolytically Coated on Steel Sheet
This standard is issued under the fixed designation E1659; 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 Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Consid-
1.1 These test methods cover independently the chemical
erations for Chemical Analysis of Metals, Ores, and
analysis of each surface of zinc-nickel alloy electrolytically
Related Materials
coated on steel sheet. The coatings have chemical composi-
E135 Terminology Relating to Analytical Chemistry for
tions within the following limits:
Metals, Ores, and Related Materials
Analyte Concentration Range
2
E173 Practice for Conducting Interlaboratory Studies of
Coating Weight 0.0 to 80 g/m
3
Nickel 7.0 to 17.0 %
Methods for Chemical Analysis of Metals
E380 Practice for Use of the International System of Units
1.2 These test methods are in the following sections:
3
(SI) (the Modernized Metric System)
Sections
Coating Weight, by the Weigh-Strip-Weigh Method 10-20 E663 Practice for Flame Atomic Absorption Analysis
2
(20.0 to 45.0 g/m )
E882 Guide for Accountability and Quality Control in the
Nickel by the Atomic Absorption Method (11.0 to 13.5 % 21-31
2 Chemical Analysis Laboratory
of Coating Weight Ranging from 20 to 45 g/m )
E1024 Guide for Chemical Analysis of Metals and Metal
1.3 The values stated in SI units are to be regarded as
Bearing Ores by Flame Atomic Absorption Spectropho-
standard. In some cases, exceptions allowed in Practice E380 3
tometry
are also used.
E1452 Practice for Preparation of Calibration Solutions for
1.4 This standard does not purport to address all of the
Spectrophotometric and for Spectroscopic Atomic Analy-
safety concerns, if any, associated with its use. It is the
3
sis
responsibility of the user of this standard to establish appro-
E1601 Practice for Conducting an Interlaboratory Study to
priate safety and health practices and determine the applica-
Evaluate the Performance of an Analytical Method
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents
3.1 For definitions of terms used in this test method, refer to
2
2.1 ASTM Standards:
Terminology E135.
A917 Specification for Steel Sheet, Coated by the Electro-
lyticProcessforApplicationsRequiringDesignationofthe 4. Significance and Use
Coating Mass on Each Surface (General Requirements)
4.1 These test methods for the chemical analysis of zinc-
A918 Specification for Steel Sheet, Zinc-Nickel Alloy
nickel alloy coating on sheet steel are primarily intended as
Coated by the Electrolytic Process for Applications Re-
referee methods to test such materials for compliance with
quiring Designation of the Coating Mass on Each Surface
compositional specifications such as found in Specification
D1193 Specification for Reagent Water
A918, particularly those under the jurisdiction of ASTM
E29 Practice for Using Significant Digits in Test Data to
CommitteeA05 on Metallic-Coated Iron and Steel Products. It
is assumed that all who use these test methods will be trained
analysts capable of performing common laboratory procedures
1
These test methods are under the jurisdiction of ASTM Committee E01 on
skillfully and safely. It is expected that work will be performed
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
in a properly equipped laboratory under appropriate quality
responsibility of Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, theirAlloys, and
control practices such as those described in Guide E882.
Related Metals.
Current edition approved Oct. 1, 2005. Published November 2005. Originally 4.2 These test methods must be applied twice, once to each
approved in 1995. Last previous edition approved in 2000 as E1659 – 00. DOI:
side of the specimen if coating weight and composition are
10.1520/E1659-05.
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 Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1659–05
TABLE 1 Statistical Information—Comparison of Stripping
required for both sides of a coated sheet. Two separ
...
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