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GB/T 30665-2014: Chemicals -- Biodegradability in seawater -- Closed bottle method
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Chemicals -- Biodegradability in seawater -- Closed bottle method
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GB/T 30665-2014
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Basic data | Standard ID | GB/T 30665-2014 (GB/T30665-2014) | | Description (Translated English) | Chemicals -- Biodegradability in seawater -- Closed bottle method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A80 | | Classification of International Standard | 13.300; 13.020.40 | | Word Count Estimation | 19,184 | | Date of Issue | 12/31/2014 | | Date of Implementation | 4/30/2015 | | Quoted Standard | GB/T 27849 | | Regulation (derived from) | National Standards Bulletin 2014 No. 33 | | 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 test substance information seawater biodegradability closed bottle law principle of the method, test materials, test procedures, quality control, taught according to the report. This Standard applies to testing and evaluation o | GB/T 30665-2014: Chemicals -- Biodegradability in seawater -- Closed bottle 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. Closed bottle method
ICS 13.300; 13.020.40
A80
National Standards of People's Republic of China
Chemicals sea creatures
Degradability Closed bottle
Issued on. 2014-12-31
2015-04-30 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
Profile 1 4 test substance
5 principle of the method 2
2 6 test material
6.1 Equipment 2
6.2 Reference substance 2
6.3 sea 2
6.4 Medium 3
6.5 3 inoculum
7 Test Procedure 3
7.1 Design Group 3
7.2 Test Operation 4
7.3 Determination of Sample 4
8 Quality Control 4
9 Data and Reports 5
9.1 Data recording 5
9.2 Data processing 5
9.3 6 Results Report
Appendix A (informative) seawater biodegradability 8
Relationship between Annex B (informative) salinity, temperature and dissolved oxygen saturation of 10
Annex C (informative) data recording table 11
Annex D (informative) Calculation of the theoretical biochemical oxygen demand 13
References 15
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The Standards and Organisation for Economic Co-operation and Development (OECD) guidelines for testing of chemicals No.306 (1992 Nian) "marine biodegradability" in
"Closed bottle" consistent chapter (in English) of technical content.
This standard configuration and do the following editorial changes.
--- The introduction, use, method selection and method reproducibility instructions included in Appendix A;
--- Increasing the terms and definitions;
--- The units of measurement to our legal units of measurement.
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, Shenyang Chemical Research Institute
Limited Safety Evaluation Center, Shanghai Academy of Environmental Sciences, Shanghai testing center.
The main drafters of this standard. Zhou Hong, Liu Chun new, Hu Junjie, Zhou Linjun, Liu Jining, Shi Lili, Cailei Ming, Song Leping, Hu Shuangqing,
Zhao Huaqing.
Chemicals sea creatures
Degradability Closed bottle
1 Scope
This standard specifies the test substance information seawater biodegradability closed bottle law principle of the method, test materials, test procedures, quality control,
Data and reports.
This standard applies to testing and evaluation of the water solubility of at least 2mg/L chemical biodegradability in seawater. For dissolution
A lower degree of substance, as in principle be as volatile compounds (such as an ultrasonic dispersion treatment), refer to this standard for testing.
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 27849 screening test chemical degradation of COD
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
BOD biochemicaloxygendemand; BOD
The amount of oxygen consumed by the microbial decomposition of organic matter, can be expressed as the number of milligrams of oxygen (mg/mg) of the test substance consumed per milligram.
3.2
COD chemicaloxygendemand; COD
In strong acid and heating conditions, a certain amount of dichromate oxidation of reducing substances in water samples of the amount of oxidant consumed, can be expressed as millimoles per
Oxygen milligrams (mg/mg) g of the test substance consumed.
3.3
Theoretical oxygen demand theoreticaloxygendemand; ThOD
Calculated according to the formula of the total amount of the test substance is completely oxidized oxygen required, it can be expressed as oxygen consumption per mg of the test substance in mg
The number of grams (mg/mg).
3.4
Stagnation lagphase; LP
Start of the test to the degradation rate of 10% during that period adaptation of microorganisms.
3.5
50% degradation time 50percentdegradation; t50
Counting from the end point to the stagnation of the 50% of the time degradation.
4 test substance data
Test substance information, including.
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