GB/T 33616-2017 in English
VALIDTextiles -- Evaluation for biodegradability of nonwovens -- Method by analysis of evolved carbon dioxide
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$136.00
《GB/T 33616-2017纺织品 非织造布可生物降解性能的评价 二氧化碳释放测定法》由TC209（全国纺织品标准化技术委员会）归口，TC209SC1（全国纺织品标准化技术委员会基础标准分会）执行，主管部门为中国纺织工业联合会。
Introduction
Interpretation of the National Standard of the People's Republic of China GB/T 33616-2017
| Standard Dimensions | GB/T 33616—2017 | ISO 19276 Series | ASTM D5511 |
|---|---|---|---|
| Scope of Application | Nonwoven fabrics and their products | Biodegradability of materials in aqueous culture medium | Plastic products |
| Test Method | Determination of Carbon Dioxide Release | Decomposition Percentage under Aerobic Conditions | Combined Anaerobic and Aerobic Methods |
| Evaluation indicators | Biodegradability, inorganic carbon release | Total organic carbon conversion efficiency | Material residual rate and gas release |
Background analysis of standard formulation
With the improvement of global environmental awareness, the biodegradability of nonwoven products has become a focus of industry attention. This standard fills the gap in this field in China and provides a scientific basis for determining the eco-friendliness of materials.
Interpretation of core technical requirements
Test step decomposition
- How to use the total organic carbon analyzer to accurately control the combustion temperature and CO₂ collection efficiency.
- Preparation of microbial suspension: It must be completed under sterile conditions to ensure the validity of the experimental results.
- The air pump flow rate is controlled (60-80 mL/min) to ensure that CO₂ is fully released and absorbed.
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