ISO 23977-1:2020 PDF

Scope: This document specifies a laboratory test method for determining the degree and rate of the aerobic biodegradation level of plastic materials. Biodegradation is determined by measuring the CO2 evolved from plastic materials when exposed to seawater sampled from coastal areas under laboratory conditions. The conditions described in this document might not always correspond to the optimum conditions for the maximum degree of biodegradation, however this test method is designed to give an indication of the potential biodegradability of plastic materials. NOTE This document addresses plastic materials but can also be used for other materials.

ISO 23977-1:2020 Referenced Document

ISO 10210 Plastics - Methods for the preparation of samples for biodegradation testing of plastic materials
ISO 10523 Water quality - Determination of pH
ISO 11261 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
ISO 5667-3 Water quality*， 2024-02-01 Update
ISO 8245 Water quality - Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)

2020 ISO 23977-1:2020 Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 1: Method by analysis of evolved carbon dioxide