GB/T 19277.2-2013 (English Version) PDF

Standard No.: GB/T 19277.2-2013
Language: Chinese, Available in English version
Release Date: 2013
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 19277.2-2013

Scope: This part of GB/T 19277 specifies a test method for determining the ultimate aerobic biodegradability of materials by measuring the amount of carbon dioxide emitted under controlled composting conditions. This method achieves the best biodegradation rate by adjusting the conditions such as humidity, aerobic concentration and temperature in the composting container. This section applies to the following materials: -- natural and/or synthetic polymers, copolymers and their mixtures; -- plastics containing additives such as plasticizers, pigments, etc.; -- water-soluble polymers; Materials that do not inhibit the activity of microorganisms in the inoculum under certain conditions. If the test material has an inhibitory effect on the microorganisms in the inoculum, other types of decomposed compost or pre-exposed compost can be used.

GB/T 19277.2-2013 Referenced Document

ISO 11721-1 Textiles - Determination of resistance of cellulose-containing textiles to micro-organisms; Soil burial test - Part 1: Assessment of rot-retardant finishing
ISO 14855-1 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1: General method
ISO 5663 Water quality; Determination of Kjeldahl nitrogen; Method after mineralization with selenium
ISO 8245 Water quality - Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)

2013 GB/T 19277.2-2013 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions.Method by analysis of evolved carbon dioxide.Part 2:Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test