Overview
ISO/TS 11931:2012 is an International Organization for Standardization (ISO) Technical Specification that defines the essential characteristics and measurement methods for nanoscale calcium carbonate (CaCO3) in powder form, tailored for applications in nanotechnology. This standard covers powder materials with the calcite crystal structure, widely used in industries such as paints, inks, building materials, paper, pharmaceuticals, and food. It specifies how to characterize nanoscale calcium carbonate by focusing on key nano-related parameters, helping manufacturers, researchers, and users ensure material quality and consistency.
ISO/TS 11931:2012 does not address health, safety, or environment-specific properties and excludes characteristics for particular applications beyond fundamental material description. The document guides specifying and reporting the basic chemical and physical properties critical for nanotechnology applications involving calcium carbonate powders.
Key Topics
Applications
ISO/TS 11931:2012 serves as a foundational reference for industries utilizing nanoscale calcium carbonate powders in various nanotechnology applications:
- Paints and Coatings: Enhances opacity and durability at the nanoscale for improved product performance.
- Paper Industry: Improves paper brightness, opacity, and surface smoothness.
- Pharmaceuticals: Used as excipients or fillers where nanoscale properties influence dissolution and bioavailability.
- Building Materials: Provides reinforcement and structural benefits in composite materials.
- Food Industry: Applications in food additives where controlled particle size and purity are critical.
This standard optimizes material specifications for consistent manufacturing, quality control, and product development in research and commercial nanotechnology contexts. It also ensures clear communication between suppliers and buyers regarding nanoscale calcium carbonate powder properties.
Related Standards
- ISO 9277:2010 – Determination of specific surface area of solids by gas adsorption using the BET method, essential for measuring surface area of nanoscale powders.
- ISO 3262-1 & 3262-6 – Methods related to extenders and precipitated calcium carbonate specifications for paint and coating applications.
- ISO/TS 27687 & ISO 80004-1 – Nanotechnologies terminology and definitions standardizing the vocabulary around nano-objects and particles.
- ISO/TR 12885:2008 – Guidance on health and safety practices in occupational settings relevant to nanotechnologies.
- ISO/TS 11937 – Similar standard addressing nanoscale titanium dioxide powders for cross-reference in nanomaterial characterization.
- ISO 14488 – Sampling and sample splitting for particulate materials ensuring representative test specimens.
Keywords: nanoscale calcium carbonate, ISO/TS 11931, nanotechnology standards, calcium carbonate powder, nanomaterials, powder characterization, X-ray diffraction, transmission electron microscopy, BET surface area, precipitated calcium carbonate, ground calcium carbonate, powder specifications.