MaTestLab > ASTM Methods > ASTM D5338, ISO 14855 Aerobic Biodegradation of Plastic Materials Under Controlled Composting Conditions at Thermophilic Temperatures
ASTM D5338, ISO 14855 Aerobic Biodegradation of Plastic Materials Under Controlled Composting Conditions at Thermophilic Temperatures
The ASTM D5338 test method is used to determine the degree and rate of aerobic biodegradation of plastic materials when exposed to a controlled-composting environment at thermophilic temperatures, under laboratory conditions. The ASTM D5338 method yields reproducible and repeatable test results under controlled conditions resembling composting conditions at thermophilic temperatures in testing labs. ASTM D5338 is employed to material samples before introducing into the waste stream. Read more about ASTM D5338, ISO 14855 Test Standard Below.
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Introduction to ASTM D5338
ASTM D5338 measures the rate and degree of aerobic biodegradation of plastic materials. This is done by exposing materials to thermophilic temperatures under a controlled composting environment maintained inside the laboratory. ASTM D5338 is employed to material samples in testing labs before introducing into the waste stream.
The ASTM D5338 test method is applicable to all plastic materials intended to be composted in facilities that achieve thermophilic temperatures such as residential composting units and large-scale, professionally-managed facilities. MaTestLab is equipped to serve its clients based in the USA, needing ASTM D5338 test method.
ASTM D5338 Test Method
Test procedure
The test substances are exposed to an inoculum derived from municipal solid waste compost. The aerobic composting takes place in an environment where temperature, aeration and humidity are closely monitored and controlled. The rate of biodegradation is monitored.
Carbon dioxide evolved is measured as a function of time and the degree of biodegradability is calculated. Disintegration of the compact test material is determined visually and weight loss of the material is calculated.
ASTM D5338 Specimens
Specimen details
Plastic materials that are not inhibitory to the microorganisms present in anaerobic digesters operating on household waste
ASTM D5338 Results
The percentage of biodegradation is calculated by dividing the average net gaseous-carbon production of the test compound by the original average amount of carbon in the test compound and multiplying by 100;
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The required number of samples or specimens should comply with the procedure given in the astm d5338 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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The turnaround time for astm d5338 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
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