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.
For procurement and quality teams, a well-defined testing scope significantly reduces communication time and ensures precise service delivery. Our mold toxin testing services are designed to meet the needs of international buyers, engineers, and quality managers by offering reliable, accredited testing for a wide range of products. By specifying your requirements upfront, we streamline the process and ensure alignment with your quality assurance objectives.
Testing Scope
Our mold toxin testing capability covers a diverse range of products, including food commodities, feed ingredients, pet food, and agricultural raw materials. We test for various types of mold toxins such as aflatoxins (B1, B2, G1, G2, M1), ochratoxin A, patulin, zearalenone, fumonisins, and deoxynivalenol (DON). The testing is applicable to different grades of materials, from raw agricultural products to finished consumer goods, and addresses application scenarios such as import safety checks, supply chain risk management, and product recalls. Commonly referenced standards include ASTM D7338, ISO 6579, EN 17143, and GB/T 5009.117.
Testing Items and Parameters
Our testing menu includes multiple mold toxins, each with defined parameters and graded limits. Typical parameters for aflatoxin testing are presented in the table below:
| Toxin | Typical Limit (µg/kg) | Graded Limit (MRL) (µg/kg) |
|---|---|---|
| Aflatoxin B1 | 0.01 - 5.0 | 0.01 (EU), 0.5 (US FDA), 20 (China) |
| Aflatoxin B2 | 0.01 - 5.0 | 0.5 (EU), 0.5 (US FDA), 20 (China) |
| Aflatoxin G1 | 0.01 - 5.0 | 0.5 (EU), 0.5 (US FDA), 20 (China) |
| Aflatoxin G2 | 0.01 - 5.0 | 0.5 (EU), 0.5 (US FDA), 20 (China) |
| Aflatoxin M1 | 0.01 - 1.0 | 0.5 (EU), 0.2 (US FDA), 0.5 (China) |
Other toxins such as ochratoxin A, patulin, and zearalenone are tested with limits tailored to specific regulatory requirements. Graded limits reflect regional regulations, with adjustments possible based on client specifications.
Data and Variation Analysis
In assessing parallel-sample and batch-to-batch variation, we report relative deviation between replicates to ensure method precision. For parallel samples, relative deviations typically fall within 5-10% for major toxins like aflatoxins, aligning with ISO 6579 guidelines. Acceptance windows for batch-to-batch consistency are defined based on historical data, with typical thresholds of ≤15% variation for commodities. Statistical analysis, including standard deviation and coefficient of variation, is applied to quantify variability. Batch-to-batch comparisons are conducted using control samples to validate stability across production cycles.
Our reporting includes detailed variation analysis, enabling clients to interpret data with confidence. By correlating results with material handling and storage conditions, we provide insights into potential risks and mitigation strategies.
For your specific testing needs, please confirm your required items and sample quantity. We will revert with a formal quotation and expected schedule to facilitate your testing requirements.