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ASTM D521-02(2007)

(Test Method)

Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)

Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)

SIGNIFICANCE AND USE
These test methods compile procedures which can be used to check the composition of purity of metallic zinc powder. This information is useful to both the formulator and users.
SCOPE
1.1 These test methods cover procedures for the chemical analysis of metallic zinc powder in the form commercially known as zinc dust for use as a pigment in paints.
1.2 The analytical procedures appear in the following order:
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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-May-2007
ICS
87.060.10 - Pigments and extenders
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.31 - Pigment Specifications
Current Stage
Ref Project

Relations

Replaces
ASTM D521-02 - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
Effective Date
01-Jun-2007
Replaced By
ASTM D521-02(2012) - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
Effective Date
01-Nov-2012
Referred By
ASTM D6580-17(2023) - Standard Test Method for The Determination of Metallic Zinc Content in Both Zinc Dust Pigment and in Cured Films of Zinc-Rich Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D126-87(2023) - Standard Test Methods for Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green
Effective Date
01-Jun-2007
Referred By
ASTM D520-00(2019) - Standard Specification for Zinc Dust Pigment
Effective Date
01-Jun-2007

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ASTM D521-02(2007) - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)ASTM D521-02(2007) - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
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ASTM D521-02(2007) - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
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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: D521 − 02 (Reapproved 2007)
StandardTest Methods for
1
Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
This standard is issued under the fixed designation D521; 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 E40 Method for Chemical Analysis of Slab Zinc (Spelter)
3
(Withdrawn 1993)
1.1 These test methods cover procedures for the chemical
E68 Method for Polarographic Determination of Lead and
analysis of metallic zinc powder in the form commercially
3
Cadmium in Zinc (Withdrawn 1980)
known as zinc dust for use as a pigment in paints.
3. Significance and Use
1.2 The analytical procedures appear in the following order:
Sections
3.1 These test methods compile procedures which can be
Moisture and Other Volatile Matter 7
used to check the composition of purity of metallic zinc
Coarse Particles 8
powder. This information is useful to both the formulator and
Matter Soluble in Hexane 9 and 10
Total Zinc 11 and 12
users.
Metallic Zinc 13 and 14
Zinc Oxide 15
4. Treatment of Sample
Calcium 16 and 17
Lead 18 4.1 Store the laboratory sample in a tightly stoppered bottle
Iron 19
to protect it from oxidation. Mix the whole sample thoroughly
Cadmium 20
before taking portions for analysis.
Chlorine 21 and 22
Sulfur 23 and 24
5. Purity of Reagents
1.3 The values stated in SI units are to be regarded as
5.1 Purity of Reagents—Unless otherwise indicated, it is
standard. No other units of measurement are included in this
intended that all reagents shall conform to the specifications of
standard.
theCommitteeonAnalyticalReagentsoftheAmericanChemi-
1.4 This standard does not purport to address all of the
4
cal Society, where such specifications are available. Other
safety concerns, if any, associated with its use. It is the
grades may be used, provided it is first ascertained that the
responsibility of the user of this standard to establish appro-
reagent is of sufficiently high purity to permit its use without
priate safety and health practices and determine the applica-
lessening the accuracy of the determination.
bility of regulatory limitations prior to use.
5.2 Purity of Water—Unless otherwise indicated, references
2. Referenced Documents
to water shall be understood to mean reagent water conforming
2
to Type II of Specification D1193.
2.1 ASTM Standards:
B214 Test Method for Sieve Analysis of Metal Powders
6. Precision
D185 Test Methods for Coarse Particles in Pigments
6.1 Precision statements have not been established.
D280 Test Methods for Hygroscopic Moisture (and Other
Matter Volatile Under the Test Conditions) in Pigments
MOISTURE AND OTHER VOLATILE MATTER
D1193 Specification for Reagent Water
D6580 Test Method for The Determination of Metallic Zinc
7. Procedure
Content in Both Zinc Dust Pigment and in Cured Films of
7.1 Determine moisture and other volatile matter in accor-
Zinc-Rich Coatings
dance with Method A of Test Methods D280, except heat the
sample for only 1 h.
1
These test methods are under the jurisdiction of ASTM Committee D01 on
Paint and Related Coatings, Materials, and Applications and are the direct
3
responsibility of Subcommittee D01.31 on Pigment Specifications. The last approved version of this historical standard is referenced on
Current edition approved June 1, 2007. Published June 2007. Originally www.astm.org.
4
approved in 1939. Last previous edition approved in 2002 as D521 – 02. DOI: Reagent Chemicals, American Chemical Society Specifications, American
10.1520/D0521-02R07. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D521 − 02 (Reapproved 2007)
COARSE PARTICLES 11.2 Uranyl Nitrate Indicator Solution— Dissolve5gof
uranyl nitrate (UO (NO ) ·6H O) in 100 mL of water.
2 3 2 2
8. Procedure
12. Procedure
8.1 Determine the percent of coarse particles in the pigment
12.1 Transfer 0.25 g of the sample to a 400-mL beaker,
in accordance with Test Methods D185 or B214.
moisten with alcohol, a
...

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