美国标准 ASTM D 6400 环保降解材料测试

Test item 测试名称: Biodegradability 环保降解材料

Norm Refer 涉及标准：DIN V 54900, EN 13432, ASTM D 5388, ISO 16929,OECD 208, ASTM D 6868, NF T51-800

Test info 测试内容：

化学测试，Chemical Characteristic Test

生物降解能力测试，Biodegradability test

生物分解, Disintegration test

生态无毒测试, Ecotoxicity test: Plant

这些测试可以保证没有重金属进入土壤并没有副作用

Brief Summary of ASTM D 6400 & ASTM D 6868

Both ASTM D6400 and ASTM D6868 include the same three components of testing (the difference between the specification is that the criteria themselves are slightly different).

1.Disintegration During Composting (on final product)
• Measured the by physical breakdown of product to pass a 2mm sieve

2.Inherent Biodegradation(on individual constituents)

•              Measured by carbon dioxide (CO2)evolution as the product biodegrades

•              Or some materials can qualify for the “materials of natural original”exception in which
case biobased content must be measured by ASTM D6866

3.No Adverse Impacts on the Ability of Compost to Support Plant Growth (on final product)

•              Testing for heavy metals

•              Plant Growth Study

In addition, the material must be chemically characterized to defend product claims: 

FTIR & Ash Content (to help with fingerprinting the material) 


Density (grammage) for bagasse and paper based products. 


Which Standard Applies to Your Product? 


ASTM D 6400 塑料is to be used for plastic products 


ASTM D 6868 纸制品is used for products such as molded pulp products or coated paper, 
basically non-plastic items (may be an oversimplification, but expresses the general idea). 


Sample size 送样规格：5000g

Lead time 测试周期: 常规 Regular 5-8 months working days

FTIR, ash content, and regulated metals plus flourine – 3 weeks (can be done quicker if needed)
Biobased testing (ASTM D6866) – approximately 7 work days
Disintegration – about 18 weeks; includes 12 weeks of composting plus a bit of time to set up the test, then at the end of the test to make the final measurements and type the report
Ecotoxicity – about 3-4 weeks, this starts at the end of disintegration testing though
Biodegradation – up to 180 days (plus 2 weeks for setup & reporting) or as few as 45 days (plus 2 weeks); it is dependent on how fast the material biodegrades, not on how fast we work.

Reference Picture 参考图片：

Others 其他信息：

1、体外试验是将样品浸泡在溶液中，不同时间点，取出样品称重，根据重量变化看材料有无降解，

2、体内试验是将样品植入到动物皮下组织，不同时间点，处死动物，观察样品是否有降解，且进行局部的组织病理观察。

Sample Report 报告样本：