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GB/T 27850-2011 English PDF

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US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27850-2011: Chemicals -- Ready biodegradability -- General considerations
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27850-2011	399	Add to Cart	3 days	Chemicals -- Ready biodegradability -- General considerations	Valid

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Basic data

Standard ID: GB/T 27850-2011 (GB/T27850-2011)
Description (Translated English): Chemicals -- Ready biodegradability -- General considerations
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 13.020.40
Word Count Estimation: 17,144
Date of Issue: 2011-12-30
Date of Implementation: 2012-08-01
Quoted Standard: GB/T 21801; GB/T 21802; GB/T 21803; GB/T 21831; GB/T 21856; GB/T 21857
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 of terms and definitions, methodology overview, general procedures and test preparation, quality assurance and quality control, data and reports. This standard applies to screening and testing of chemical substances in water under aerobic conditions, the rapid biodegradability.

GB/T 27850-2011: Chemicals -- Ready biodegradability -- General considerations

---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. Ready biodegradability. General considerations ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals biodegradability General Issued on. 2011-12-30 2012-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms, Definitions and Abbreviations 1 4 test substance information 3 5 Summary of Method 3 General Procedure 6 Test and ready 4 7 Test Operation 6 8 Quality Assurance and Quality Control 6 9 Data and Reports 7 Appendix A (informative) of the test substance inoculum growth inhibition process 9 Processing Annex B (informative) insoluble test substances 10 Calculation and determination of Appendix C (informative) corresponding parameter 11 Annex D (informative) nitrification oxygen consumption correction 13

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. The main drafters of this standard. the new Liu Chun, Zhou red, yellow star, Liu Jining, Shi Lili, Zhu Jianrong, omni-directional spring, Li Handong, Zhao Yuyan. Chemicals biodegradability General

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. 3.1 Terms and Definitions 3.1.1 DO dissolvedoxygen, DO Concentration of dissolved oxygen in the water, in mg/L expressed. 3.1.2 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. 3.1.3 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. 3.1.4 Dissolved organic carbon dissolvedorganiccarbon, DOC 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. 3.1.5 Theoretical oxygen 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 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 27850-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 27850-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 27850-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 27850-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.