GB/T 21829-2008 English PDF

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GB/T 21829-2008: Chemicals -- Simulation test -- Aerobic sewage treatment: Activated sludge units
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21829-2008	394	Add to Cart	3 days	Chemicals -- Simulation test -- Aerobic sewage treatment: Activated sludge units	Valid

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Basic data

Standard ID: GB/T 21829-2008 (GB/T21829-2008)
Description (Translated English): Chemicals -- Simulation test -- Aerobic sewage treatment: Activated sludge units
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 13.020.40
Word Count Estimation: 20,242
Date of Issue: 2008-05-12
Date of Implementation: 2008-09-01
Adopted Standard: OECD No.303-2001, IDT
Regulation (derived from): Announcement of Newly Approved National Standards 2008 No. 8 (No. 121 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 simulation test Aerobic sewage treatment: activated sludge unit test method overview, instruments and equipment, test preparation, test procedures, quality control, data and reports. This standard applies to testing and evaluation of water-soluble, non- volatile chemicals maximum biodegradability.

GB/T 21829-2008: Chemicals -- Simulation test -- Aerobic sewage treatment: Activated sludge units

---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.Simulation test.Aerobic sewage treatment. Aactivated sludge units ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals Aerobic sewage treatment simulation test. Active sludge units 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 2 5. Apparatus 2 6 test preparation 3 7 Test Procedure 4 8 Quality Control 5 9 Data and Reports 5 Appendix A (informative) biodegradability testing apparatus 8 Annex B (informative) Example 10 Degradation curve Annex C (informative) coupling test apparatus 11 Annex D (informative) test substance on the activated sludge inhibition 12 Processing Appendix E (normative) poorly water-soluble and volatile substances 13 Test Annex F (informative) low concentrations (μg/L) levels under 15 References 16

Foreword

This standard is identical with the Organisation for Economic Co-operation and Development (OECD) guidelines for testing of chemicals No. 303 (2001), "Simulation of Sewage Aerobic treatment. Activated sludge units. " This standard made the following editorial changes. --- Increase the scope, terms and definitions, quality control; --- The units of measurement to our legal units of measurement. The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F for the informative appendix. This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points. This standard is drafted by. Environmental Protection Department of the Nanjing Institute of Environmental Sciences. Participated in the drafting of this standard. Chemical Registration Center of the Ministry of Environmental Protection, Chinese Academy of Inspection and Quarantine. The main drafters of this standard. mono-n-Jun, Shi Lili, Liu Jining, Yang Li, Chen Lin, Falls Apart. Chemicals Aerobic sewage treatment simulation test. Active sludge units

1 Scope

This standard specifies the chemical simulation test Aerobic sewage treatment. activated sludge unit test methods outlined, instruments and equipment, Test Guideline Equipment, test procedures, quality control, data and reports. This standard applies to testing and evaluation of water-soluble, non-volatile largest bio-chemical degradation.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Test substance in contact with the inoculum exhibited potential for biodegradation. 2.2 Test substance causes chemical changes in the structure characteristic of the process of loss under the action of microorganisms. 2.3 In strong acid solution, a certain amount of dichromate oxidation of reducing substances in water samples of the consumption of oxidants, also be expressed as milligrams per The amount of oxygen (mg/mg) of the test substance consumed. 2.4 Solution of organic carbon content, or through the 0.45μm membrane filter content of organic carbon in the test solution, or by 4000r/min speed away 15min after the heart of organic carbon content of the supernatant. 2.5 Start of the test to the degradation rate of 10% during that period adaptation of microorganisms. 2.6 Continuous test, the degradation rate of the maximum duration. Typically, at least 3 weeks, the test 15 valid data.

3 test substance information

a) structural formula; b) purity; c) a water-soluble; d) volatile; e) adsorption; f) microbial toxicity. ......

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