Heubach Test – Seed Treatment Quality Assessment
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What is the Heubach test and what it includes
The Heubach test measures the amount of free dust released from treated seeds under defined conditions. This assessment is crucial for monitoring seed treatment quality and ensuring that treated seeds meet specific requirements for moisture, cleanliness, and dust content. The test covers a range of seed types, including maize, oilseed rape, sugar beet, sunflower, cereals, carrot, chicory, onion, sweet corn, beans, peas, and cotton. Kiwa conducts the Heubach test in full compliance with ESTA guidelines, providing clients with reliable results and supporting ongoing quality control.
For whom would the Heubach test be interesting?
The Heubach test is designed for seed producers, agricultural companies, seed treatment facilities, and quality assurance professionals seeking to verify the effectiveness and safety of seed treatment processes. It is especially relevant for organizations aiming to comply with ESTA – European Seed Treatment Assurance standards.
Benefits of the Heubach test
- Ensures compliance with ESTA – European Seed Treatment Assurance standards.
- Provides accurate measurement of dust release, supporting safe seed handling and environmental protection.
- Enables continuous monitoring and improvement of seed treatment processes.
- Reduces consumption of seed treatment products through precise control.
- Supports product quality, safety, and market acceptance.
- Offers measurable financial benefits by optimizing treatment product usage
Why choose Kiwa for your Heubach test?
Kiwa is an independent testing and certification body with expertise in agricultural quality assurance. Kiwa’s laboratories participate annually in international comparative studies organized by FNPSMS/GERM-Services, confirming its competence and reliability. Clients benefit from Kiwa’s professional approach, transparent reporting, and commitment to supporting compliance and quality in seed treatment.
Process steps
Request submission
Clients contacts Kiwa to schedule the Heubach test for their treated seeds.
Sample preparation
Seeds are prepared according to ESTA requirements, ensuring proper moisture and cleanliness.
Laboratory testing
Kiwa performs the Heubach test in the laboratory, measuring dust release under controlled conditions.
Results analysis
Dust levels are compared to threshold values for each seed type.
Reporting
Kiwa provides a detailed report, including compliance status and recommendations.
Ongoing monitoring
Regular testing supports continuous improvement and compliance1.
Applicable Standards and Regulations
ESTA – European Seed Treatment Assurance guidelines
ESTA GuidelinesFNPSMS/GERM-Services international comparative studies
Specific dust threshold values for each seed type
FAQ about the Heubach test
What is the Heubach test?
The Heubach test measures the amount of free dust released from treated seeds under specific conditions. The result allows you to assess the quality of the treatment process and compliance with the ESTA standard.
Which seeds can be tested with the Heubach method?
The test covers maize, oilseed rape, sugar beet, sunflower, cereals, carrot, chicory, onion, sweet corn, beans, peas, cotton, and more.
Why is dust measurement important in seed treatment?
Dust levels affect seed handling safety, environmental impact, and compliance with ESTA standards.
How often should the Heubach test be performed?
Frequent and continuous monitoring is recommended to ensure ongoing compliance and optimize treatment product usage.
Does Kiwa provide certification for Heubach testing?
Kiwa’s laboratory participates in international comparative studies and provides certificates confirming competence and compliance.
What are the threshold values for the dust content according to ESTA?
- Corn 0.75g dust / 100,000 seeds
- Rapeseed 0.50g dust / 700,000 seeds
- Sugar beet 0.25g dust / 100,000 balls
- Sunflower 0.40g Dust / 75,000 Seeds
- Cereals 4.00g dust / 100kg seeds
- Carrots, Endive Chicory 0.10g dust / 100,000 seeds
- Onion 0.20g dust / 100,000 seeds
- Sweet/sweet corn 0.75g dust/100,000 seeds
- Green and grain beans 0.40g dust / 100,000 seeds
- Peas 0.20g dust / 100,000 seeds
- Cotton 6.00g dust / 100kg seeds.
Our Laboratory annually participates in international comparative studies organized by FNPSMS / GERM-Services.
