ASTM D769-01(2019)
(Specification)Standard Specification for Black Synthetic Iron Oxide
Standard Specification for Black Synthetic Iron Oxide
ABSTRACT
This specification details the properties and requirements for the pigment commercially known as black synthetic iron oxide, which is manufactured ferrous-ferric oxide obtained by chemical reaction. It shall be a soft dry finely powdered pigment, free of admixtures of other substances. Specimens shall be sampled, chemically tested, and conform accordingly to specified values of the following requirements: total iron oxides (as ferrous and ferric oxide); ferrous iron in iron oxide; water-soluble matter; moisture and other volatile matter; coarse particles (total residue retained on a No. 325 sieve); hydrogen ion concentration (pH value); and mass color, tint character, and tinting strength.
SCOPE
1.1 This specification covers the pigment commercially known as black synthetic iron oxide.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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
- Technical Committee
- D01 - Paint and Related Coatings, Materials, and Applications
- Drafting Committee
- D01.31 - Pigment Specifications
Relations
- Effective Date
- 01-Jun-2019
- Effective Date
- 01-Jun-2019
- Effective Date
- 01-May-2019
- Effective Date
- 01-Nov-2012
- Effective Date
- 01-Nov-2012
- Effective Date
- 01-Jun-2011
- Effective Date
- 01-Jun-2011
- Effective Date
- 01-Feb-2008
- Effective Date
- 01-Jul-2007
- Effective Date
- 01-Jun-2007
- Effective Date
- 01-Feb-2007
- Effective Date
- 01-Sep-2005
- Effective Date
- 01-Sep-2005
- Effective Date
- 10-May-2001
- Effective Date
- 10-May-2001
Overview
ASTM D769-01(2019): Standard Specification for Black Synthetic Iron Oxide establishes the technical requirements and test procedures for black synthetic iron oxide pigments. This standard, developed by ASTM International, specifies the properties of black synthetic iron oxide, a finely powdered pigment consisting of manufactured ferrous-ferric oxide. The pigment must be free from admixtures and meet precise composition and performance criteria to ensure quality and consistency in industrial applications. All values are provided in SI units, following internationally recognized standardization principles.
Key Topics
- Composition and Purity: The pigment must be manufactured from ferrous-ferric oxide through a controlled chemical reaction. It should contain a minimum of 93% total iron oxides and at least 20% ferrous oxide (FeO).
- Physical and Chemical Properties:
- Water-soluble matter: Max 0.5%
- Moisture and volatile matter: Max 1.0%
- Coarse particles (No. 325 sieve residue): Max 0.5%
- Hydrogen ion concentration (pH value): 4.5 to 8.5
- Color and Tinting Strength: The standard defines requirements for mass color, tint character, and tinting strength when mixed with white pigments. Acceptable values must be jointly agreed upon by the purchaser and the seller.
- Testing and Sampling Procedures:
- Samples are randomly drawn from production batches according to shipment size.
- Testing references specific ASTM methods for evaluation, including chemical analysis (D50, D3872), particle size (D185), moisture content (D280), and pigment color and strength (D387).
- Quality Assurance: Specified test procedures and criteria ensure products meet the consistent standards required in pigment manufacturing.
Applications
Black synthetic iron oxide, as defined by ASTM D769-01(2019), is primarily used as a pigment in various industrial and commercial products, including:
- Paints and coatings: Provides color strength, ultraviolet stability, and durability in architectural and industrial paints.
- Construction materials: Used as a pigment in concrete, mortar, tiles, and other building products for color uniformity and weather resistance.
- Plastics and polymers: Adds color and improves opacity in plastic and rubber compounds.
- Inks and toners: Ensures consistent coloration in printing inks and electronic toners.
Compliance with this specification assures manufacturers and end users of the pigment’s quality, consistency, and suitability for critical applications where precise color characteristics and material performance are essential.
Related Standards
For a comprehensive approach to testing and specification of synthetic iron oxide and other pigments, the following ASTM standards are frequently referenced alongside ASTM D769-01(2019):
- ASTM D50: Test Methods for Chemical Analysis of Pigments
- ASTM D185: Test Methods for Coarse Particles in Pigments
- ASTM D280: Test Methods for Hygroscopic Moisture in Pigments
- ASTM D387: Test Method for Color and Strength of Chromatic Pigments
- ASTM D1208: Test Methods for Common Properties of Certain Pigments
- ASTM D3872: Test Method for Ferrous Iron in Iron Oxides
Summary
Adhering to ASTMD769-01(2019) guarantees high-quality black synthetic iron oxide pigments with proven chemical composition, purity, and reliable performance in demanding applications. This standard is essential for pigment manufacturers, quality assurance teams, and industries relying on consistent pigment characteristics for their products. For more details or updates, refer to the ASTM International website.
Frequently Asked Questions
ASTM D769-01(2019) is a technical specification published by ASTM International. Its full title is "Standard Specification for Black Synthetic Iron Oxide". This standard covers: ABSTRACT This specification details the properties and requirements for the pigment commercially known as black synthetic iron oxide, which is manufactured ferrous-ferric oxide obtained by chemical reaction. It shall be a soft dry finely powdered pigment, free of admixtures of other substances. Specimens shall be sampled, chemically tested, and conform accordingly to specified values of the following requirements: total iron oxides (as ferrous and ferric oxide); ferrous iron in iron oxide; water-soluble matter; moisture and other volatile matter; coarse particles (total residue retained on a No. 325 sieve); hydrogen ion concentration (pH value); and mass color, tint character, and tinting strength. SCOPE 1.1 This specification covers the pigment commercially known as black synthetic iron oxide. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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.
ABSTRACT This specification details the properties and requirements for the pigment commercially known as black synthetic iron oxide, which is manufactured ferrous-ferric oxide obtained by chemical reaction. It shall be a soft dry finely powdered pigment, free of admixtures of other substances. Specimens shall be sampled, chemically tested, and conform accordingly to specified values of the following requirements: total iron oxides (as ferrous and ferric oxide); ferrous iron in iron oxide; water-soluble matter; moisture and other volatile matter; coarse particles (total residue retained on a No. 325 sieve); hydrogen ion concentration (pH value); and mass color, tint character, and tinting strength. SCOPE 1.1 This specification covers the pigment commercially known as black synthetic iron oxide. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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.
ASTM D769-01(2019) is classified under the following ICS (International Classification for Standards) categories: 87.060.10 - Pigments and extenders. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D769-01(2019) has the following relationships with other standards: It is inter standard links to ASTM D769-01(2012), ASTM D1208-96(2019), ASTM D3872-05(2019), ASTM D1208-96(2012), ASTM D280-01(2012), ASTM D50-90(2011), ASTM D3872-05(2011), ASTM D387-00(2008), ASTM D185-07, ASTM D1208-96(2007), ASTM D280-01(2007), ASTM D50-90(2005), ASTM D3872-05, ASTM D280-01, ASTM D280-81(1995). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D769-01(2019) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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: D769 −01 (Reapproved 2019)
Standard Specification for
Black Synthetic Iron Oxide
This standard is issued under the fixed designation D769; 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
Total ferrous and ferric oxide, min % 93
Ferrous oxide (FeO), min, % 20
1.1 This specification covers the pigment commercially
Water-soluble matter, max, % 0.5
known as black synthetic iron oxide. Moisture and other volatile matter, max, % 1.0
Coarse particles (total residue retained on a No. 0.5
1.2 The values stated in SI units are to be regarded as the
325 (45-µm) sieve), max, %
Hydrogen ion concentration (pH value) 4.5 to 8.5
standard. The values given in parentheses are for information
only. 3.2 The mass color and character of the tint and the tinting
strength formed by a mixture with a white pigment shall be
1.3 This international standard was developed in accor-
within mutually agreed upon limits of a standard acceptable to
dance with internationally recognized principles on standard-
both the purchaser and the seller.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4. Sampling
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4.1 Two samples shall be taken at random from different
packages from each lot, batch, day’s pack, or other unit of
2. Referenced Documents
production in a shipment. When no markings distinguishing
between units of production appear, samples shall be taken
2.1 ASTM Standards:
from different packages in the ratio of two samples for each
D50 Test Methods for ChemicalAnalysis ofYellow, Orange,
4540 kg or 10 000 lb, except that for shipments of less than 10
Red, and Brown Pigments Containing Iron and Manga-
000 lb, two samples shall be taken. At the option of the
nese
purchaser, the samples may be tested separately or after
D185 Test Methods for Coarse Particles in Pigments
blending in equal quantities the samples from the same
D280 Test Methods for Hygroscopic Moisture (and Other
production unit to form a composite sample.
Matter Volatile Under the Test Conditions) in Pigments
D387 Test Method for Color and Strength of Chromatic
5. Test Methods
Pigments with a Mechanical Muller
D1208 Test Methods for Common Properties of Certain
5.1 Tests shall be conducted in accordance with the appro-
Pigments
priate test methods. Test procedures not covered byASTM test
D3872 Test Method for Ferrous Iron in Iron Oxides
methods shall be mutually agreed upon between the purchaser
and the seller.
3. Composition and Properties
5.1
...
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