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GB/T 21807-2008 English PDF

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US$369.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21807-2008: Chemicals -- Fish, short-term toxicity test on embryo and sac-fry stages
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21807-2008	369	Add to Cart	3 days	Chemicals -- Fish, short-term toxicity test on embryo and sac-fry stages	Valid

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Basic data

Standard ID: GB/T 21807-2008 (GB/T21807-2008)
Description (Translated English): Chemicals -- Fish, short-term toxicity test on embryo and sac-fry stages
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 13.020.40
Word Count Estimation: 16,198
Date of Issue: 2008-05-12
Date of Implementation: 2008-09-01
Adopted Standard: OECD No.212-1998, 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 fish embryos and yolk sac larvae stages of short-term toxicity test method overview, test preparation, test procedures, quality assurance and quality control, data and reports. This standard applies to determine the chemicals on the test species in a particular stage of the lethal effect and a certain degree of sublethal effects.

GB/T 21807-2008: Chemicals -- Fish, short-term toxicity test on embryo and sac-fry stages

---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.Fish, short-term toxicity test on embryo and sac-fry stages ICS 13.300; 13.020.40 A80 National Standards of People's Republic of China Chemicals fish embryo and yolk sac larvae stage Short-term toxicity 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

Foreword

This standard is identical with the Organisation for Economic Co-operation and Development (OECD) guidelines for testing of chemicals No. 212 (1998), "fish embryo and yolk Short-term toxicity test sac larval stage "(in English). This standard made the following editorial changes. content; --- Adjust the terms and definitions from the appendix to the original text content. The Standard Appendix A, Appendix B, Appendix C and Appendix D is an informative annex. 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 Chemical Registration Center. Participated in the drafting of this standard. Shanghai Academy of Environmental Sciences, Ministry of Environmental Protection, Nanjing Institute of Environmental Sciences, Shenyang Chemical Research Institute Safety Evaluation Center. The main drafters of this standard. Lu Ling, Shen Ying baby, Zhou Hong, Hu Shuangqing, Liangdan Tao, Bu Yuanqing, Cai Xiang. Chemicals fish embryo and yolk sac larvae stage Short-term toxicity test

1 Scope

This standard specifies the short-term toxicity test chemical in fish embryo and yolk sac larvae stage approach outlined, test preparation, test drive Order, quality assurance and quality control, data and reports. This standard applies to determine the sublethal effects of chemicals on the test species in the lethal effect of a particular stage and a certain degree.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 2.2 Test test substance directly below the LOEC set the intensity.

3 test substance information

a) structural formula; b) purity; c) solubility in water; d) vapor pressure; e) pKa value; f) n-octanol/water partition coefficient (Pow); g) stability in water and light in; h) a reliable quantitative analysis of the test organisms in the test solution and the accuracy of the detection limit; i) stability under test conditions; j) the same test species LC50 values; k) biodegradability test results.

4 Summary of Method

4.1 Principle Embryo - sac fry stage are exposed to a range of concentrations of the test substance solution. Test mode for the semi-static or flow-type formula. Before the test started from the fertilized egg into the test chamber, the larvae until either the yolk sac is completely absorbed or open the control group of fish because of hunger Death before the start end of the trial. Calculation lethal and sublethal effects, and compared to a control group to determine the value of the LOEC and NOEC. In addition, Effect concentration caused by regression analysis to estimate percent x0 test organisms produce a specific reaction, ie LC or EC x0 x0. 4.2 reference material No recommended reference substances. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21807-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21807-2008_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 21807-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21807-2008_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.