GB/T 27850-2011Chemicals -- Ready biodegradability -- General considerations (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard is one of "Chemicals biodegradability" series standard, it with GB/T 21801 "rapid biodegradation of chemicals Respiratory metrology test ", GB/T 21802" Chemical biodegradability modified MITI Test (I) ", GB/T 21803 "Chemicals biodegradability DOC reduction test", GB/T 21831 "Chemical biodegradability. Closed bottle test Test ", GB/T 21856" Chemical biodegradability of carbon dioxide generation test "and GB/T 21857" rapid biological chemicals Degradability modified OECD screening test, "supporting the use of six criteria.

The Standards and Organisation for Economic Co-operation and Development (OECD) guidelines for testing of chemicals No.301 (1992 Nian) "biodegradability" (English Version) identical technical content.

This standard configuration and do the following editorial changes.

--- The units of measurement to our legal units of measurement;

--- Remove OECD301 "biodegradability" informative foreword Background section;

--- The "stable", "biodegradability" and "inherent biodegradability" include provisions for terms, definitions and abbreviations are used Consistent with the definition of national standards has been released.

This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points.

This standard was drafted. Chemical Registration Center of the Ministry of Environmental Protection, Ministry of Environmental Protection, Nanjing Institute of Environmental Sciences, Beijing Normal University, China National Academy of Environmental Sciences, Shenyang Research Institute of Chemical Safety Evaluation Center.

1 Scope

This standard specifies the chemical biodegradability of terms and definitions, methods overview, general test procedures and preparation, quality assurance and quality control, data and reports.

This standard applies to the screening and testing of chemicals in the water under aerobic conditions, rapid biodegradability.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 21801 Chemicals biodegradability breath test measurement method GB/T 21802 Chemicals biodegradability modified MITI (I) test GB/T 21803 Chemicals biodegradability DOC reduction test GB/T 21831 Chemicals biodegradability Closed bottle test GB/T 21856 Chemicals biodegradability of carbon dioxide generation test GB/T 21857 Chemicals biodegradability modified OECD screening test

3 Terms, definitions and abbreviations

The following terms, definitions and abbreviations apply to this document.