Compostable Biodegradation/Disintegration Testing
What is Compostable Biodegradation and Disintegration Testing?
This testing evaluates the biodegradation and disintegration capabilities of plastics and other materials under composting conditions. It aims to minimize environmental impact and supports the development of renewable materials. The test measures both aerobic and composite biodegradability of plastic materials and assesses their disintegration under simulated composting conditions in laboratory and pilot-scale environments.
Test Items
| Classification | Standard Name | ||||
|---|---|---|---|---|---|
| Compostable Biodegradation Test | Industrial Composting Conditions |
KS M ISO 14855-1 Measurement of aerobic biodegradability of plastic materials under composting conditions by analyzing emitted carbon dioxide |
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| Home Composting Conditions |
AS 5810 Biodegradable plastics suitable for home composting |
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| Composite Biodegradation Test | Composite Biodegradability (after hydrolysis) |
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 | Pre-treatment Method | Test Period | Required Sample Quantity | Test Temperature | Evaluation Method |
|---|---|---|---|---|---|
| General Composting Biodegradation | Grinding | 45–180 days | About 200g or more | 58 ℃ | Carbon dioxide emissions |
| Composite Biodegradation | Grinding after hydrolysis | 45–180 days after pretreatment (hydrolysis or oxidative degradation to molecular weight reduction) | |||
| Grinding after photo-oxidation decomposition |
| Classification | Standard Name | |
|---|---|---|
| Lab-Scale Disintegration Test |
KS T ISO 20200 Measurement of the disintegration of plastic materials under laboratory-scale simulated composting conditions |
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| Pilot-Scale Disintegration Test |
KS M ISO 16929 Measurement of the disintegration of plastic materials under prescribed composting conditions through pilot-scale testing |
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| Division | Test Period | Required Sample Quantity | Evaluation Method |
|---|---|---|---|
| Lab-Scale Disintegration Test | 4–12 weeks | About 5g or more | Weight reduction rate, visual evaluation |
| Pilot-Scale Disintegration Test | About 1kg or more |
