GB/T 21815.1-2008 English PDF

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GB/T 21815.1-2008: Chemicals Biodegradability in seawater -- Shake flask method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21815.1-2008	369	Add to Cart	3 days	Chemicals Biodegradability in seawater -- Shake flask method	Valid

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Basic data

Standard ID: GB/T 21815.1-2008 (GB/T21815.1-2008)
Description (Translated English): Chemicals Biodegradability in seawater -- Shake flask method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 13.020.40
Word Count Estimation: 16,196
Date of Issue: 2008-05-12
Date of Implementation: 2008-09-01
Adopted Standard: OECD No.306-1992, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 7, 2008 (No. 120 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the chemical biodegradability in seawater shake flask method test method overview, test preparation, test procedures, quality assurance and quality control, data and reports. This part applies to the testing and evaluation of water -soluble, volatile during the test but not because of a significant loss, no significant adsorption of organic matter in seawater biodegradability. This section does not apply to water solubility of less than 5 mg of C/L in organic matter.

GB/T 21815.1-2008: Chemicals Biodegradability in seawater -- Shake flask method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Chemicals Biodegradability in seawater. Shake flask method ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals in seawater biodegradability Shake flask method test Posted 2008-05-12 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Terms and definitions 1 3 1 test substance information 4 Summary of Method 1 5 Test Preparation 2 6 Test Procedure 3 7 Quality Assurance and Quality Control 4 8 Data and Reports 4 Appendix A (normative) method for the determination of organic carbon in seawater 6 Annex B (informative) data recording table 7 Annex C (informative) seawater biodegradability 10 Reference 12

Foreword

GB/T 21815-2008 "chemicals in seawater biodegradability" is expected to be divided into two parts. --- Part 1 as "chemical seawater biodegradation test shake-flask method"; --- Part 2 as "Chemical seawater biodegradability Closed bottle test." This section GB/T 121 815 Part of this part identical with the Organisation for Economic Co-operation and Development (OECD) Guidelines for the Testing of Chemicals No. 306 (1992) "seawater biodegradability. shake-flask method" (in English). This standard made the following editorial changes. --- The introduction, use, method selection classified as Appendix C; --- The units of measurement to our legal units of measurement. Appendix A, Appendix B and Appendix C are informative appendix. This part of the National Chemicals Management Standardization Technical Committee dangerous (SAC/TC251) and focal points. This section is responsible for drafting unit. Department of Environmental Protection Chemical Registration Center. Participated in the drafting of this section. Nanjing Institute of Environmental Sciences Department of Environmental Protection, Shenyang Research Institute of Chemical Safety Evaluation Center, Shanghai Testing Center. The main drafters of this section. Zhou Hong, Kan Xiaodong, Liu Chun new, Liu Jining, Shi Lili, Jiafu Yan, Zhao Huaqing. Chemicals in seawater biodegradability Shake flask method test

1 Scope

This section GB/T 21815 specifies the method of chemicals in seawater biodegradation test shake-flask method overview, test preparation, test Procedures, quality assurance and quality control, data and reports. This section applies to testing and evaluation can be dissolved in water (water solubility to count C is greater than 25mg/L,), not because of volatility during the test And there is significant loss of seawater no significant adsorption of organic matter in the biodegradability. This section does not apply to C solubility in water of less than 5mg/L of organic matter.

2 Terms and definitions

The following terms and definitions apply to this part of the GB/T 21815 of. 2.1 Test substance in contact with the inoculum exhibited potential for biodegradation. 2.2 Solution, organic carbon content, often after filtration through 0.45μm membrane liquid organic carbon content, or by 4000r/min speed After centrifugation, the supernatant 15min organic carbon content. 2.3 Start of the test to the degradation rate of 10% of the period.

3 test substance information

a) the formula; b) purity; c) the main component and proportions; d) organic carbon content; e) solubility in water; f) vapor pressure; g) adsorption; h) microbial toxicity.

4 Summary of Method

4.1 Method Description Shake-flask method is to introduce improved seawater variables OECD screening test [2]. The test results are not indicative of rapid aquatic organisms Biodegradable, just to get their biological degradation in the marine environment of information. The results of the degradation is low, it does not necessarily mean the test Non-biodegradable matter in the marine environment, but rather that more work is needed to explain its degradation. Test method described in Appendix C. ......

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