GB/T 27857-2011 (English Version) PDF

Standard No.: GB/T 27857-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 27857-2011

Scope: This standard specifies the test substance information, method overview, test preparation, test procedure, data processing, quality assurance and quality control and test report of the anaerobic biodegradability gas production method of chemical organic matter in digested sludge. This standard applies to known water-soluble chemical substances. If the standard of precise dosage preparation provided in ISO 10634 is adopted, it is also applicable to chemical substances that are poorly water-soluble and water-insoluble. When this standard is used for volatile substances, it is necessary to take specific operation steps step by step. When the standard is used for volatile substances, it is necessary to take specific operation steps for verification step by step, such as determining the airtightness of the test system during the test, etc.

GB/T 27857-2011 Referenced Document

ISO 10634:1995 Water quality - Guidance for the preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium

2011 GB/T 27857-2011 Chemicals. Anaerobic biodegradability of organic compounds in digested sludge. By measurement of gas production