Compostable Biodegradation/Disintegration Testing
What is Compostable Biodegradation and Disintegration Testing?
This testing evaluates the biodegradation properties and disintegration capabilities of plastics and other materials under composting conditions. It aims to minimize environmental impact and contribute to the development of renewable materials. The test measures the aerobic biodegradability and composite biodegradability of plastic materials, assessing their disintegration under simulated composting conditions in both laboratory and pilot-scale settings.
Test Items
| classification | Standard name | ||||
|---|---|---|---|---|---|
| Composting biodegradability test | Industrial composting conditions |
KS M ISO 14855 – 1 Measurement of aerobic biodegradability of plastic materials under composting conditions, through the analysis of emitted carbon dioxide. |
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| Home composting conditions |
AS 5810 Biodegradable plastics suitable for home composting |
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| Composite biodegradability test | Biodegradability after hydrolysis and composting |
ISO 21701 Textiles - Test method for accelerated hydrolysis of textile materials and biodegradation under controlled composting conditions of the resulting hydrolysate |
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| Oxidative biodegradability |
ASTM D6954 Standard Guide for Exposing and Testing Plastics that Degrade in the Environment by a Combination of Oxidation and Biodegradation |
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| division | Preprocessing method | Exam period | Required sample quantity | Test temperature | Evaluation method |
|---|---|---|---|---|---|
| General composting biodegradation | smash | 45~180 days | About 200g or more | 58 ℃ | Carbon dioxide emissions |
| Composite biodegradation | Grinding after hydrolysis | 45 to 180 days after pretreatment (hydrolysis or oxidative degradation to the point of molecular weight reduction) | |||
| Crushing after photo-oxidation decomposition |
| classification | Standard name | |
|---|---|---|
| Lab-scale biodegradability test |
KS T ISO 20200 Measurement of the degradation of plastic materials under laboratory-scale simulated composting conditions. |
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| Pilot scale biocollapse test |
KS M ISO 16929 Measurement of the degradation of plastic materials under prescribed composting conditions through pilot-scale testing. |
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| division | Exam period | Required sample quantity | Evaluation method |
|---|---|---|---|
| Lab-scale biodegradability test | 4~12 weeks | About 5g or more | Weight reduction rate, visual evaluation |
| Pilot scale biocollapse | About 1 kg or more |
