ASTM D210-05(2023) PDF

Overview

ASTM D210-05(2023) - Standard Specification for Bone Black Pigment defines requirements for the pigment types commercially known as bone black, ivory black, or drop black. Developed by ASTM International, this standard establishes precise specifications for both dry pigments and aqueous dispersions, ensuring consistency, quality, and reliable performance in commercial and industrial applications.

Bone black pigment is produced by the calcination of animal bones and is characterized by its deep black coloration and reliable tinting strength. This pigment is available either in dry form or as an aqueous dispersion, with each form meeting specific compositional requirements. ASTM D210-05(2023) supports standardization efforts and trade by providing clear guidelines recognized under the World Trade Organization Technical Barriers to Trade (WTO TBT) principles.

Key Topics

• Pigment Types Covered
  • Bone black, ivory black, drop black
• Physical Forms
  • Available as a dry pigment or as an aqueous dispersion
• Composition and Requirements
  • Dry Pigment: Made solely from calcined bones without additional substances
    • Maximum ash content: 88%
    • Maximum ash insoluble in acids: 3%
    • Maximum coarse particles: 2% retained on 45 μm (No. 325) sieve
  • Aqueous Dispersion: Combination of ground pigment, water, and additives
    • Minimum pigment content: 38%
    • Additives: dispersing agent (14%), biocide (max 1%), fungicide (max 1%), pH stabilizer (max 1%), defoamer (max 1%), water (44%)
• Testing and Quality Control
  • Sampling requirements from each production batch
  • Use of referenced ASTM methods for particle size, color quality, tinting strength, and pigment-oil interactions

Applications

Bone black pigment specified in ASTM D210-05(2023) is widely used across multiple industries due to its intense black color, high tinting strength, and reliable consistency. Key applications include:

• Paints and Coatings: Used as a black pigment in artist paints, industrial finishes, and protective coatings
• Printing Inks: Formulated for deep black inks
• Plastics and Polymers: Used for coloration in plastics manufacturing
• Ceramics and Glass: Provides color in specialty ceramic and glass products
• Other Uses: May also appear in cosmetic products, paper coatings, and specialty rubber compounds

This standard ensures the bone black pigment meets stringent quality and performance criteria, making it a preferred option for critical manufacturing and design processes.

Related Standards

Compliance with ASTM D210-05(2023) often involves referencing additional ASTM standards for testing and evaluation of bone black pigment:

• ASTM D185 - Test Methods for Coarse Particles in Pigments
• ASTM D387 - Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
• ASTM D1208 - Test Methods for Common Properties of Certain Pigments

These supporting standards provide methodologies for assessing particle size, tinting strength, and other essential pigment properties, reinforcing the reliability and practicality of ASTM D210-05(2023).

By following ASTM D210-05(2023), manufacturers, suppliers, and end-users can ensure that bone black pigments used in their products meet internationally recognized standards for quality, consistency, and safety. This facilitates international trade and applications in a wide range of industries, reflecting ASTM's commitment to global standardization.