| Key elements | Technical specifications | Test requirements |
|---|---|---|
| Test principle | Determination of the mass of undecomposed residues by 2mm sieving method | Test period of up to 180 days at 25±5°C |
| Test matrix | Mature compost + starch/rabbit feed or organic waste mixture | Total solid content 50%±5%, pH≥6 |
| Validity criteria | Parallel sample difference ≤20%, temperature ≤30°C | Temperature fluctuations and corrective measures need to be recorded |
The samples need to maintain the final use shape, and large-sized materials should be cut into 2.5×2.5cm to 5×5cm fragments. Thickness measurement needs to select the corresponding ISO method according to the material type:
It is recommended to use 5-10 liter polypropylene containers. The key control points include:
This standard is developed based on the EN ISO 20200 laboratory composting test method. The main innovations include:
This standard only determines the degree of physical decomposition. Complete composting certification also requires the following:

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Update:
Fri, 17 Apr 2026 00:31:03 +0000