ISO 23977-2 Aerobic Biodegradability of Plastics in Seawater by Measuring Oxygen Consumption

    Introduction to ISO 23977-2

    Plastics that persist in aquatic systems (freshwater, estuarine, or marine) are not so environmentally friendly for many years, if they are not biodegradable. By providing a standard and reproducible test method with a specified microbial population to measure the environmental impacts of non-biodegradable plastic, ISO 23977-2 in part helps to globally understand. This is very important when any kind of data needs to be repeatable, for instance, when you compare products, certification material, or in the case of regulatory testing.

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    ISO 23977-2 Test Method

    The test has two testing conditions: 1. Closed respirometer, 2. Biological Oxygen Demand (BOD) test

    Test procedure for the Closed respirometer A closed respirometer is used to measure oxygen consumption during the biodegradation process. 
    Test procedure for BOD BOD is measured by either maintaining a constant gas volume or by measuring changes in volume or pressure. 
    Sample preparationThe sample size is not fixed for this test.

    ISO 23977-2 Results and Interpretation

    The biodegradation level is calculated through comparison of the BOD, or biochemical oxygen demand, to the theoretical oxygen demand (ThOD), reported in percent. The results show the potential biodegradability of the plastic when tested in a controlled laboratory environment. 

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    Use of ISO 23977-2 in Various Industries

     Generally, this test is used in the plastic manufacturing and packaging industry

    Materials Commonly Tested with ISO 23977-2

    The most common material is plastic 

    Limitations of ISO 23977-2

    The maximum level of biodegradation is determined from the plateau phase of the biodegradation curve.

    FAQ

    Where can I get the iso 23977 2 tested?
    You can share your iso 23977 2 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific iso 23977 2 test to various testing techniques.
    Please contact us for a detailed quote for your iso 23977 2 testing needs. Cost incurred to carry out different iso 23977 2 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
    The required number of samples or specimens should comply with the procedure given in the iso 23977 2 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
    The turnaround time for iso 23977 2 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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