GB/T 27852-2011 English PDF

US$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27852-2011: Chemicals -- Biodegradation screening test -- Biochemical oxygen demand
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27852-2011	169	Add to Cart	3 days	Chemicals -- Biodegradation screening test -- Biochemical oxygen demand	Valid

Similar standards

GB 30000.1   GB/T 28577   GB 30000.10   GB/T 27844   GB/T 27843   

Basic data

Standard ID: GB/T 27852-2011 (GB/T27852-2011)
Description (Translated English): Chemicals -- Biodegradation screening test -- Biochemical oxygen demand
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 13.020.40
Word Count Estimation: 7,739
Date of Issue: 2011-12-30
Date of Implementation: 2012-08-01
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 biodegradation screening tests BOD test methods. This standard applies to water-soluble solid or liquid organic compounds, can also be used for volatility, low water solubility of the organic matter. This standard applies to the trial no inhibitory effect on bacterial concentrations of organic matter. This standard gives a method for screening test substances biodegradability approach.

GB/T 27852-2011: Chemicals -- Biodegradation screening test -- Biochemical oxygen demand

---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. Biodegradation screening test. Biochemical oxygen demand ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals biodegradation screening test BOD 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

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard and the European Commission Regulation 440/2008. the European Parliament and the Council on the Registration, Evaluation, Authorisation and Restriction Methods C.5 (REACH) No. 1907/2006 Test method regulations (2008) "BOD degradation" in the technical The same contents. This standard configuration and do the following editorial changes. --- The units of measurement to our legal units of measurement; --- Consistent with the existing standard series, the standard name will be changed to "Chemicals biodegradability screening tests Biochemical Oxygen Demand"; --- Terminology and definitions provisions, the use of national standards and consistent definition of already published. This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points. This standard was drafted. MEP Chemical Registration Center, Shanghai Testing Center, Ministry of Environmental Protection, Nanjing Institute of Environmental Sciences, Guangdong Province, microbiological analysis Testing Center, Chinese Academy of Inspection and Quarantine. The main drafters of this standard. the new Liu Chun, Chen Lin, Nie Jinglei, Chen Xiaoqian, Yang Jing, mono-n-Jun, Wang Na, Liu Jun, Falls Apart.

Introduction

The purpose of this method is to determine the solid or liquid organic biochemical oxygen demand (BOD). The Test Guidelines apply to water-soluble test substance, at least in theory also applies to the volatility and low water solubility of the test substance. This method applies only to the next test concentration had no effect on bacteria organic test substances. If the concentration of the test substance at the test-insoluble, should be adopted With a particular method of ultrasonic dispersion, etc., so the test was to obtain good dispersion. Toxicity data test substance may help to explain the phenomenon of low test results and selection of appropriate test concentrations. Chemicals biodegradation screening test BOD

1 Scope

This standard specifies the test methods for chemical biodegradability screening tests BOD. This standard applies to solid or liquid water-soluble organic substances, it can also be used for volatility, low water solubility of the organic matter. This standard applies to the concentration of bacteria in the test no inhibitory effect of organic matter. This standard gives a test substance biodegradability screening method.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 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 test substance information

Test information, including. a) the formula or the formula; b) purity and impurity; c) water solubility or dispersion; d) vapor pressure; e) microbial toxicity or inhibitory.

4 reference substances

Using a suitable reference material test inoculum activity.

5 principle of the method

A certain amount of test substance is dissolved or dispersed in a sufficiently aerated suitable medium, inoculated with microorganisms, thermostatic dark airtight culture. through Measuring the start of the test and the dissolved oxygen content at the end to determine the difference between the BOD. Test period of at least 5d, but not more than 28d.

6 Test Procedure

6.1 Preparation of the test solution Test for solubility greater than the concentration of test substance, the test needs to be formulated based on the initial solution of the test substance. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 27852-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 27852-2011_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 27852-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 27852-2011_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.