ISO 15985:2014 PDF
Plastics — Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions — Method by analysis of released biogas
Plastics — Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions — Method by analysis of released biogas
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Дата публикации:
- 7 мая 2014 г.
- Издание:
- ISO IS 15985 edition 2 version 1
- ICS:
- 83.080.01
ISO 15985:2014 specifies a method for the evaluation of the ultimate anaerobic biodegradability of plastics based on organic compounds under high-solids anaerobic-digestion conditions by measurement of evolved biogas at the end of the test. This method is designed to simulate typical anaerobic digestion conditions for the organic fraction of mixed municipal solid waste. The test material is exposed in a laboratory test to a methanogenic inoculum derived from anaerobic digesters operating only on pretreated household waste. The anaerobic decomposition takes place under high-solids (more than 20 % total solids) and static non-mixed conditions. The test method is designed to yield the percentage of carbon in the test material and its rate of conversion to evolved carbon dioxide and methane (biogas).
Abstract
Overview
ISO 15985:2014 specifies a laboratory method to determine the ultimate anaerobic biodegradability of plastics under high‑solids anaerobic digestion conditions by measuring the evolved biogas (methane and carbon dioxide). The procedure simulates typical anaerobic digestion of the organic fraction of municipal solid waste using a methanogenic inoculum from anaerobic digesters treating pretreated household waste. Results report the percentage of carbon in the test material converted to biogas and, optionally, loss in mass.
Key topics and technical requirements
- Test conditions: high‑solids (>20% total solids), static (non‑mixed), incubation in the dark at 52 °C ± 2 °C.
- Inoculum: derived from digesters fed only with pretreated household waste; post‑fermented ~7 days to reduce background activity; target biochemical properties include pH 7.5–8.5, VFA
Технические детали
- Технический комитет
- ISO/TC 61/SC 14 - Environmental aspects
- SKU
- ISO 15985:2014
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