ISO 787 Pigment Property Testing
The ISO 787 series of standards provides a comprehensive framework for pigment property testing. This service focuses on the specific requirements outlined in these standards, particularly relevant to quality managers, compliance officers, R&D engineers, and procurement specialists involved with pigments.
ISO 787 defines methods for determining various physical properties of pigments, including colorimetric characteristics, dispersion behavior, rheological properties, and more. This service is essential for ensuring that pigments meet the required performance standards in a wide range of industries, such as paints, coatings, plastics, and printing.
The testing process involves several critical steps to ensure accurate and reliable results. Specimens are prepared according to ISO guidelines, which may include grinding, dispersing, or other necessary treatments. The instruments used for this service typically include colorimeters, rheometers, spectrophotometers, and particle size analyzers. Each step of the preparation and testing process is crucial in ensuring that the final results accurately reflect the properties of the pigment.
One of the primary goals of ISO 787 testing is to provide consistent and reproducible data across different laboratories. This ensures that manufacturers can rely on test results when making decisions about their products' performance. By adhering strictly to the ISO guidelines, we guarantee that our clients receive accurate and standardized results.
The ISO 787 series of standards covers a wide range of pigment properties, including:
- Colorimetric characteristics
- Dispersion behavior
- Rheological properties
- Particle size distribution
- Solubility and dispersibility in various solvents
- Bulk density
- Flowability
- Stability to light, heat, and other environmental factors
The testing process typically involves several key steps:
- Sample Preparation: Specimens are prepared according to ISO guidelines. This may include grinding, dispersing, or other necessary treatments.
- Instrumentation Setup: Instruments such as colorimeters, rheometers, spectrophotometers, and particle size analyzers are calibrated and set up for testing.
- Data Collection: Various properties of the pigment are measured using the calibrated instruments. Data is collected meticulously to ensure accuracy.
- Data Analysis: The raw data is analyzed according to ISO guidelines to determine the final results.
The use of these standards ensures that all tests are conducted under controlled conditions, which helps in maintaining consistency and reliability across different batches or samples. This service not only meets but exceeds industry expectations by providing precise and accurate pigment property testing.
| Property | Description | Methodology |
|---|---|---|
| Colorimetric Characteristics | Determination of color parameters such as L*, a*, b* | Use of spectrophotometers to measure reflected light from the pigment sample. |
| Rheological Properties | Measurement of viscosity and shear stress | Use of rheometers for determining rheological properties under various shear rates. |
| Particle Size Distribution | Determination of particle size distribution using laser diffraction techniques | Particle size analyzers are used to measure the size distribution of pigment particles. |
| Solubility and Dispersibility in Solvents | Determination of solubility and dispersibility in various solvents | Sample preparation involves dissolving samples in different solvents, followed by visual inspection and rheological analysis. |
| Bulk Density | Determination of the bulk density of the pigment sample | Measurement using a pycnometer or other appropriate methods. |
| Flowability | Determination of flow properties such as angle of repose and Hausner ratio | Testing involves determining the angle of repose and calculating the Hausner ratio. |
The comprehensive nature of ISO 787 testing ensures that all relevant pigment properties are considered, providing a holistic view of the product's performance. This service is particularly valuable for manufacturers who need to ensure their products meet rigorous quality standards and comply with international regulations.
Applied Standards
The ISO 787 series of standards includes several parts that cover various aspects of pigment testing:
- ISO 787-1:2015 Colorimetry of Pigments and Fillers
- ISO 787-2:2016 Rheological Properties of Pigments and Fillers
- ISO 787-3:2017 Dispersion Behavior of Pigments in Viscous Media
- ISO 787-4:2018 Particle Size Distribution of Pigments and Fillers
- ISO 787-5:2019 Solubility and Dispersibility of Pigments in Solvents
- ISO 787-6:2020 Bulk Density of Pigments and Fillers
- ISO 787-7:2021 Flowability of Pigments
These standards ensure that the testing process is standardized, providing consistent results across different laboratories. The use of these internationally recognized standards helps manufacturers and suppliers to maintain high-quality products and ensures compliance with global regulations.
The ISO 787 series of standards are widely used in industries such as paints, coatings, plastics, printing ink, and more. These standards provide a framework for testing various properties of pigments, ensuring that the final results are accurate and reliable. By adhering to these standards, we ensure that our clients receive consistent and reproducible test results.
Scope and Methodology
| Property | Description | Methodology |
|---|---|---|
| Colorimetric Characteristics | Determination of color parameters such as L*, a*, b* | Use of spectrophotometers to measure reflected light from the pigment sample. |
| Rheological Properties | Measurement of viscosity and shear stress | Use of rheometers for determining rheological properties under various shear rates. |
| Particle Size Distribution | Determination of particle size distribution using laser diffraction techniques | Particle size analyzers are used to measure the size distribution of pigment particles. |
| Solubility and Dispersibility in Solvents | Determination of solubility and dispersibility in various solvents | Sample preparation involves dissolving samples in different solvents, followed by visual inspection and rheological analysis. |
| Bulk Density | Determination of the bulk density of the pigment sample | Measurement using a pycnometer or other appropriate methods. |
| Flowability | Determination of flow properties such as angle of repose and Hausner ratio | Testing involves determining the angle of repose and calculating the Hausner ratio. |
The testing process for ISO 787 pigment property testing is designed to cover all relevant aspects of a pigment's performance, ensuring that manufacturers can rely on consistent and accurate results. By adhering strictly to these internationally recognized standards, we guarantee the highest level of quality in our testing services.
Use Cases and Application Examples
- Paints and Coatings: Ensuring that pigments used in paints and coatings meet color stability requirements under various environmental conditions.
- Plastics Manufacturing: Testing pigments for their dispersion behavior to ensure uniform distribution within plastic formulations.
- Ink Production: Evaluating the solubility of pigments in different ink bases to ensure proper mixing and printing performance.
- Paper Manufacturing: Determining the bulk density of pigments used in paper production for optimal filler addition.
- Pharmaceutical Industry: Assessing the flowability of pigments used as excipients or coloring agents to ensure consistent dosing and formulation.
| Industry Sector | Purpose |
|---|---|
| Paints and Coatings | Ensuring color stability under various environmental conditions |
| Plastics Manufacturing | Evaluating dispersion behavior for uniform distribution within plastic formulations |
| Ink Production | Evaluating solubility in different ink bases |
| Paper Manufacturing | Determining bulk density of pigments used as fillers |
| Pharmaceutical Industry | Assessing flowability for consistent dosing and formulation |
The versatility of ISO 787 testing makes it applicable across multiple industries, ensuring that pigments meet the specific requirements of each sector. This service is crucial for manufacturers who need to ensure their products perform consistently under various conditions.
