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

SIGNIFICANCE AND USE
3.1 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:    
Sections  
Moisture and Other Volatile Matter  
7  
Coarse Particles  
8  
Matter Soluble in Hexane  
9 and 10  
Total Zinc  
11 and 12  
Metallic Zinc  
13 and 14  
Zinc Oxide  
15  
Calcium  
16 and 17  
Lead  
18  
Iron  
19  
Cadmium  
20  
Chlorine  
21 and 22  
Sulfur  
23 and 24  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-May-2019
Current Stage
Ref Project

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ASTM D521-02(2019) - Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D521 − 02 (Reapproved 2019)
Standard Test 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 D185 Test Methods for Coarse Particles in Pigments
D280 Test Methods for Hygroscopic Moisture (and Other
1.1 These test methods cover procedures for the chemical
Matter Volatile Under the Test Conditions) in Pigments
analysis of metallic zinc powder in the form commercially
D1193 Specification for Reagent Water
known as zinc dust for use as a pigment in paints.
D6580 Test Method for The Determination of Metallic Zinc
1.2 The analytical procedures appear in the following order:
Content in Both Zinc Dust Pigment and in Cured Films of
Sections
Zinc-Rich Coatings
Moisture and Other Volatile Matter 7
E40 Method for Chemical Analysis of Slab Zinc (Spelter)
Coarse Particles 8
3
(Withdrawn 1993)
Matter Soluble in Hexane 9 and 10
Total Zinc 11 and 12
E68 Method for Polarographic Determination of Lead and
Metallic Zinc 13 and 14
3
Cadmium in Zinc (Withdrawn 1980)
Zinc Oxide 15
Calcium 16 and 17
Lead 18
3. Significance and Use
Iron 19
Cadmium 20 3.1 These test methods compile procedures which can be
Chlorine 21 and 22
used to check the composition of purity of metallic zinc
Sulfur 23 and 24
powder. This information is useful to both the formulator and
1.3 The values stated in SI units are to be regarded as
users.
standard. No other units of measurement are included in this
standard.
4. Treatment of Sample
1.4 This standard does not purport to address all of the
4.1 Store the laboratory sample in a tightly stoppered bottle
safety concerns, if any, associated with its use. It is the
to protect it from oxidation. Mix the whole sample thoroughly
responsibility of the user of this standard to establish appro-
before taking portions for analysis.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5. Purity of Reagents
1.5 This international standard was developed in accor-
5.1 Purity of Reagents—Unless otherwise indicated, it is
dance with internationally recognized principles on standard-
intended that all reagents shall conform to the specifications of
ization established in the Decision on Principles for the
theCommitteeonAnalyticalReagentsoftheAmericanChemi-
Development of International Standards, Guides and Recom-
4
cal Society, where such specifications are available. Other
mendations issued by the World Trade Organization Technical
grades may be used, provided it is first ascertained that the
Barriers to Trade (TBT) Committee.
reagent is of sufficiently high purity to permit its use without
2. Referenced Documents lessening the accuracy of the determination.
2
2.1 ASTM Standards: 5.2 Purity of Water—Unless otherwise indicated, references
B214 Test Method for Sieve Analysis of Metal Powders to water shall be understood to mean reagent water conforming
to Type II of Specification D1193.
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, 2019. Published June 2019. Originally www.astm.org.
4
approved in 1939. Last previous edition approved in 2012 as D521 – 02 (2012). Reagent Chemicals, American Chemical Society Specifications, American
DOI: 10.1520/D0521-02R19. 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
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D521 − 02 (2019)
6. Precision Z 5 W/ V 2 B (1)
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1
6.1 Precision statements have not been established.
where:
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