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ASTM D283-13

(Test Method)

Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments

Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments

SIGNIFICANCE AND USE
3.1 This collection of test methods is used by pigment producers and paint manufacturers for process control, product acceptance, and research and development.
SCOPE
1.1 These test methods cover procedures for the chemical analysis of cuprous oxide and copper pigments.  
1.2 The analytical procedures appear in the following order:    
Sections  
Total Copper  
7  
Total Reducing Power as Cuprous Oxide  
8 and 9  
Metallic Copper  
10 and 11  
Cuprous Oxide  
12  
Cupric Oxide  
13  
Metals Other than Copper  
14 – 16  
Chlorides and Sulfates  
17 and 18  
Acetone-Soluble Matter  
19  
Water  
20  
Stability  
21  
Coarse Particles  
22  
Coarse Particles Insoluble in Nitric Acid  
23
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-Oct-2013
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ASTM D283-84(1999) - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments (Withdrawn 2008)
Effective Date
01-Nov-2013
Replaced By
ASTM D283-13(2019) - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments
Effective Date
01-Jun-2019

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ASTM D283-13 - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper PigmentsASTM D283-13 - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments
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ASTM D283-13 - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D283 − 13
Standard Test Methods for
1
Chemical Analysis of Cuprous Oxide and Copper Pigments
This standard is issued under the fixed designation D283; 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 3. Significance and Use
1.1 These test methods cover procedures for the chemical 3.1 This collection of test methods is used by pigment
analysis of cuprous oxide and copper pigments. producers and paint manufacturers for process control, product
acceptance, and research and development.
1.2 The analytical procedures appear in the following order:
Sections
4. Treatment of Sample
Total Copper 7
Total Reducing Power as Cuprous Oxide 8 and 9 4.1 Grind dry pigments, if lumpy or not finely ground, to a
Metallic Copper 10 and 11
fine powder and thoroughly mix (Note 1). Large samples may
Cuprous Oxide 12
be thoroughly mixed and a representative portion taken and
Cupric Oxide 13
Metals Other than Copper 14–16
powderediflumpyornotfinelyground.Inallcasesthoroughly
Chlorides and Sulfates 17 and 18
mix the sample before taking portions for analysis. Preserve all
Acetone-Soluble Matter 19
samples in dry, dark, airtight and completely filled bottles or
Water 20
Stability 21
containers to prevent oxidation. Some commercial copper
Coarse Particles 22
oxides appear to segregate or oxidize rather easily. Therefore,
Coarse Particles Insoluble in Nitric Acid 23
the thorough mixing of the sample to ensure homogeneity and
1.3 The values stated in SI units are to be regarded as
therapidhandlingofthesample,whenexposedtolightandair,
standard. No other units of measurement are included in this
are extremely important factors in obtaining accurate results
standard.
NOTE 1—It is very important that the sample be thoroughly mixed.
Some samples of cuprous oxide are not homogeneous so are likely to give
1.4 This standard does not purport to address all of the
trouble when an attempt is made to obtain concordant results. By placing
safety concerns, if any, associated with its use. It is the
a few grams of a sample on a sheet of white paper and drawing it out with
responsibility of the user of this standard to establish appro-
a spatula, it is frequently found that the sample contains coarse particles
priate safety and health practices and determine the applica-
of black scale, along with small balls of bright red cuprous oxide. Thus,
it may be necessary to pass the pigment through a No. 60 (250-µm) sieve,
bility of regulatory limitations prior to use.
break up any lumps of ground pigment by gentle pressure, and grind any
coarse particles failing to pass through the sieve. Since oxidation of slight
2. Referenced Documents
or even considerable magnitude may take place, these operations should
2
2.1 ASTM Standards:
be performed quickly, avoiding prolonged grinding and exposure to light
D185 Test Methods for Coarse Particles in Pigments
and air.
D1193 Specification for Reagent Water
5. Reagents
D1208 Test Methods for Common Properties of Certain
Pigments 5.1 Purity of Reagents—Reagent grade chemicals shall be
used in all tests. Unless otherwise indicated, it is intended that
all reagents shall conform to the specifications of the Commit-
1
These test methods are under the jurisdiction of ASTM Committee D01 on
tee onAnalytical Reagents of theAmerican Chemical Society,
Paint and Related Coatings, Materials, and Applications and are the direct
3
responsibility of Subcommittee D01.31 on Pigment Specifications. where such specifications are available. Other grades may be
Current edition approved Nov. 1, 2013. Published December 2013. Originally
approved in 1928. Last previous edition approved in 1999 as D283 – 84 (1999)
3
which was withdrawn January 2008 and reinstated in November 2013. DOI: Reagent Chemicals, American Chemical Society Specifications, American
10.1520/D0283-13. 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 ----------------------
D283 − 13
used, provided it i
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