ComPlast Testing

ComPlast Bags have undergone rigorous testing by approved authorities, demonstrating that they are biodegradable, surpassing the aerobic biodegradation requirements for ASTM D6400, EN13432 and AS4736 certification. ComPlast products are non-toxic, a requirement for EN13432 and AS4736 certification. The following tests have been carried out by Organic Waste Systems (DWS), based in Belgium. 

Certification Summary | ComPlast Eco-Friendly Bags

Category Criteria Test Standard Industrial Composting Home Composting
Aerobic Biodegradation - Controlled Composting (58˚C) > 90% in180 days ISO 14855 100%  
Aerobic Biodegradation - At Under 30°C  > 90% in 12 months ISO 14855-1   Not Tested Yet
Disintegration - Controlled Composting (58˚C) >90% smaller than 2mm in 12 weeks ISO 16929 85%  
Disintegration - At Under 30°C  >90% smaller than 2mm in 26 weeks ISO 20200   84%
Characterization >50% organic. Independent 99.5% 99.5%
Does not exceed maximum allowable values for specified heavy metals Independent Achieved Achieved
Compost Quality No negative effect: Density, Total dry solids, Volatile solids, Salt content, pH, N, P, Mg, K.  AS 4454 Achieved Achieved
Ecotoxicity Germination rates and plant biomass to be impacted no more than 10% EN 13432 (Appendix E) 2% Cress, 3% Barley 2% Cress, 3% Barley
Morbidity rate in earthworms to be less than 10% ASTM E1676 Not Tested 
Category Criteria Test Standard General Testing
Standard Soil Biodegradation 60% at the end of test period. ISO 17556 59.4%
Marine Aerobic Biodegradation > 90% in 133 days ASTM D6691 85.3% ± 9.1%
Aqueous Aerobic Biodegration  > 90% in 141 days ISO 14851 90%


Please note that the ComPlast product disintegration levels approach, but do not yet meet the levels required for certification under EN13432 and AS4736 certification. However, after 12 weeks of aerobic composting 85% of a ComPlast test product will be in pieces 2mm in diameter or less (the requirement for certification is 90%). Petroleum based plastic bags sometimes have a range of mineral and chemical accelerants added at the manufacturing stage to quicken their disintegration speed, which allow them to meet the composting standards.