Reasons for choosing our testing services
ZHONGXI Testing has obtained inspection qualification certifications from multiple countries and regions worldwide. We possess a senior testing team and advanced testing methods, providing independent, impartial, and professional third-party verification services for global carbon projects.
Internationally recognized authority
Certified by multiple international standards such as CNAS, VCS, and GS, with reports universally applicable worldwide.
Global service capability
Covering 140+ countries and regions, it supports on-site detection and remote verification in multiple languages.
Professional experimental methods
Adopt standard experimental methods to ensure accurate and reliable data.
A well-defined testing scope is the first sign of a competent laboratory. Our services for acetone-hydrated soybean protein isolate demonstrate our technical expertise and commitment to delivering accurate, reliable results. We specialize in evaluating the chemical, physical, and functional properties of this material, catering to industries such as food additives, pharmaceuticals, and biodegradable materials. Our capabilities are aligned with global standards, ensuring our clients receive consistent and internationally recognized test reports.
Testing Scope
Our testing scope for acetone-hydrated soybean protein isolate encompasses a wide range of products, materials, and grades. The material is commonly used as a food stabilizer, binder, and emulsifier due to its excellent film-forming and water-holding properties. Testing is applicable to various application scenarios, including coatings, adhesives, and bioplastics. We adhere to relevant standards such as ASTM, ISO, EN, and GB, ensuring our tests meet the requirements of international regulations and industry best practices.
Applicable products include:
- Acetone-hydrated soybean protein isolate in powder form
- Compressed tablets or granules of the material
- Solutions or dispersions prepared from the isolate
Materials are tested across different grades, from industrial-grade to food-grade, with specific reference to their intended use. Common application scenarios include:
- Food processing and packaging
- Pharmaceutical excipients
- Biodegradable film production
- textile and paper reinforcement
Standards frequently referenced include:
- ASTM D6957-14 for biodegradable plastics
- ISO 13967 for protein materials
- EN 13432 for compostable materials
- GB/T 19077 for food additives
Testing Items and Parameters
Our testing services cover multiple parameters to assess the quality and performance of acetone-hydrated soybean protein isolate. Key test items include chemical composition, physical properties, and functional characteristics. Graded limit requirements are established based on industry specifications and client requirements.
Typical test items and parameters are outlined in the table below:
| Test Item | Typical Parameters | Graded Limit Requirements |
|---|---|---|
| Protein Content | 80% - 95% | ±2% for food-grade, ±3% for industrial-grade |
| Acetone Retention | 50% - 70% | ±5% |
| Moisture Content | 3% - 8% | ±1% |
| Particle Size Distribution | 100 - 500 µm | ±20 µm |
| Water Absorption Capacity | 10 - 20 g/g | ±1 g/g |
Additional parameters may be included based on specific client needs, such as thermal stability, solubility, and film-forming properties. All tests are conducted using advanced analytical instruments to ensure precision and accuracy.
Data and Variation Analysis
Assessment of parallel-sample and batch-to-batch variation is critical to ensure consistent material quality. Our laboratory employs statistical methods to analyze data and determine typical acceptance windows. Relative deviation between parallel samples is calculated to evaluate intra-batch variability, with acceptance limits set based on industry standards.
For parallel-sample variation, we measure the coefficient of variation (CV) to quantify consistency. Typical acceptance windows for key parameters are:
- Protein content: CV ≤ 2.5%
- Acetone retention: CV ≤ 4%
- Moisture content: CV ≤ 1.5%
- Particle size distribution: CV ≤ 15%
Batch-to-batch variation is assessed by comparing samples from different production runs. Statistical analysis, including mean and standard deviation calculations, is used to establish baseline variability. Acceptance criteria are derived from historical data and client specifications, ensuring materials meet consistent performance expectations.
Results are reported with clear variation analysis, providing clients with insights into material stability and reproducibility. This data supports quality control decisions and regulatory compliance efforts.
Clients are welcome to share drawings, material grades, or purchase specifications so that the testing plan can be matched precisely to their requirements. Our team is ready to assist with any specialized testing needs or additional parameters required for their applications.