ISO 17556:2012
Plastics - Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
- Standard No.
- ISO 17556:2012
- Release Date
- 2012
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 17556:2019
- Latest
- ISO 17556:2019
- Scope
- This International Standard specifies a method for determining the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a closed respirometer or the amount of carbon dioxide evolved. The method is designed to yield an optimum degree of biodegradation by adjusting the humidity of the test soil. If a non-adapted soil is used as an inoculum, the test simulates the biodegradation processes which take place in a natural environment; if a pre-exposed soil is used, the method can be used to investigate the potential biodegradability of a test material. This method applies to the following materials: — natural and/or synthetic polymers, copolymers or mixtures of these; — plastic materials which contain additives such as plasticizers or colorants; — water-soluble polymers. It does not necessarily apply to materials which, under the test conditions, inhibit the activity of the microorganisms present in the soil. Inhibitory effects can be measured using an inhibition control or by another suitable method. If the test material inhibits the microorganisms in the soil, a lower test material concentration, another type of soil or a pre-exposed soil can be used. The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory compounds for the subsequent evaluation of their biodegradability in an aqueous medium 1
ISO 17556:2012 history
- 2019 ISO 17556:2019 Plastics — Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
- 2012 ISO 17556:2012 Plastics - Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
- 2003 ISO 17556:2003 Plastics - Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
