Tiêu chuẩn quốc tế
Số hiệu
Standard Number
ISO 19679:2020
Năm ban hành 2020
Publication date
Tình trạng
A - Còn hiệu lực
Status |
Tên tiếng Anh
Title in English Plastics — Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface — Method by analysis of evolved carbon dioxide
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Thay thế cho
Replace ISO 19679:2016
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Chỉ số phân loại Quốc tế (ICS)
By field
83.080.01 - Chất dẻo nói chung
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Số trang
Page 20
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard This document specifies a test method to determine the degree and rate of aerobic biodegradation of plastic materials when settled on marine sandy sediment at the interface between seawater and the seafloor, by measuring the evolved carbon dioxide (CO2). This test method can also be applied to other solid materials. This test method is a simulation under laboratory conditions of the habitat found in different seawater/sediment-ar The determination of biodegradation of plastic materials and other solid materials buried in marine sediment is outside the scope of this document. NOTE Measurement of aerobic biodegradation can also be obtained by monitoring the oxygen consumption, as described in ISO 18830. The conditions described in this document do not always correspond to the optimum conditions for the maximum degree of biodegradation to occur. |