ISO 23977-1 standard

  • Home
  • ISO 23977-1 standard

Get a quote!
Select a product and list them here.

Fill out the form
Thanks for requesting an offer from us!
One of our team members will get in touch with you shortly.

Determination of aerobic biodegradation of plastic materials exposed to seawater — Part 1

ISO 23977-1: 2020 describes two variations of a test method for determining the biodegradability of plastics materials in natural seawater. The test is performed under mesophilic test conditions for up to two years by incubating plastic materials with either seawater only or with seawater to which low amount of sediment has been added, coming from the same site where the seawater was taken. The biodegradation is followed by measuring the evolution of carbon dioxide. The level of biodegradation is determined by comparing the amount of carbon dioxide evolved with the theoretical amount and expressed in percentage. The test result is the maximum level of biodegradation, determined from the plateau phase of the biodegradation curve.

Please notice the aerobic biodegradation of plastic materials exposed to seawater can also be analysed according to ISO 23977-2: 2020 based on measurement of oxygen demand (BOD) in a closed respirometer. This is the recommended method for Gas Endeavour® with a simplified system configuration, higher measurement reliability and capacity. 

Read more about ISO 23977-1 at iso.org

– a novel tool for anaerobic and aerobic biodegradability assays

Gas Endeavour® is a well-engineered, novel platform for analysing low gas volume and flow whenever there is a demand for high accuracy and precise measurements. Its unique design makes the Gas Endeavour a reliable tool that can be used in a wide range of academic and industrial applications. The application fields include but not limited to compostability, aerobic and anaerobic biodegradability analyses. It provides highly precise and accurate data with significant reductions in the operational time, analyses cost, labour and laboratory skill requirements.

Test equipment for biodegradability, digestibility and respirometry analysis

Contact our instrument experts