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HOME > Technical Information > Characteristics of GOHSENOL > Biodegradability

Technical Information

Characteristics of GOHSENOL

Biodegradability

Our PVOH products in the GOHSENOL, GOHSENAL and ECOMATY lines are eco-friendly biodegradable resins, registered in the Green Plastic positive list of the Biodgradable Plastics Society of Japan.

What is Green Plastic?

[Biodegrability test]
Our products were tested per "Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer".
(JIS K6950:2000 ISO14851:1999)
Comparison of Biodegradability Tests with Various PVOH Brands
PVOH Brand Product Name BOD(ppm) Biodgrability Ratio( % )
GOHSENOL N-300 137 75.5
GH-17 120 67.1
KH-17 118 66.7
KP-06 151 86.3
GOHSENAL T-330 81 45.7
ECOMATY WO-239 112 60.9
GOHSERAN L-3266 98.1 56.4
GOHSEFIMER Z-200 162 90.6

Test conditions:
(1) Specimen concentration: 100 mg/L
(2) Application concentration: 90 mg/L
(3) Standard test medium: 300 mL
(4) Test temperature: 25 ± 1 degree C
(5) Test duration: 28 days
(6) Active sludge: Sludge returned from Mizushima Plant, Nippon Gohsei



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