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GB/T 21764-2008 English PDF

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US$134.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21764-2008: Chemicals -- Test method of sub-chronic dermal toxicity study
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21764-2008	134	Add to Cart	3 days	Chemicals -- Test method of sub-chronic dermal toxicity study	Valid

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Basic data

Standard ID: GB/T 21764-2008 (GB/T21764-2008)
Description (Translated English): Chemicals -- Test method of sub-chronic dermal toxicity study
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300; 11.100
Word Count Estimation: 7,744
Date of Issue: 2008-05-12
Date of Implementation: 2008-09-01
Adopted Standard: OECD No.411-1981, 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 rodent subchronic dermal toxicity test scope, terms and definitions, test basic principles, test methods, test data and reports. This standard applies to detect chemicals subchronic dermal toxicity tests. Acute toxicity test to get through the preliminary test substance toxicity data after subchronic dermal toxicity determination to provide the specified test period repeated exposure through the skin and cause a potential health hazard information.

GB/T 21764-2008: Chemicals -- Test method of sub-chronic dermal toxicity study

---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. Test method of subchronic dermal toxicity study ICS 13.300; 11.100 A80 National Standards of People's Republic of China Chemicals subchronic dermal toxicity test methods 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) Chemicals Test Method No. 411 (1981), "sub-chronic dermal toxicity Test Method "(in English). The editorial changes made the following standards. --- Increasing the scope; --- A unit of measurement unity to our legal units of measurement; --- Delete the reference section of the OECD. This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points. This standard is drafted by. China Center for Disease Control and Prevention of Occupational Health and Poison Control. Participated in the drafting of this standard. Hubei CIQ. The main drafters of this standard. Ai Wei Wu, Cui Hairong, star Guo, Guo Jian, Cheng Ye, Chen Jianjun, Zhao Hui. Chemicals subchronic dermal toxicity test methods

1 Scope

This standard specifies the scope of rodent subchronic dermal toxicity test, the terms and definitions, basic test principle, test methods, test Data and reports. This standard applies to detect chemicals sub-chronic dermal toxicity test. Preliminary toxicity test data was obtained by the acute toxicity test Thereafter, sub-chronic dermal toxicity determined to provide a predetermined trial period through the skin caused by repeated exposure to a potential health hazard data.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 (Period does not exceed 10% of animal life) during a portion of the test animals in the daily life of the animal through the skin by repeated exposure Detrimental effects caused. 2.2 Percutaneous test, the amount of test substance is applied daily to the skin. Dose may be mass (g, mg) in the test animals or the weight of the coated units The quality of the test substance (mg/kg) expressed. 2.3 (NAEL) Test is the maximum dose was not observed (not visible) harmful effects. In experimental animal unit of body weight per day the amount of test substance [Mg/(kg · d)] to represent. 2.4 Repeated exposure is long-term effects on sensitive group, or the concentration of the test substance or its metabolites deleterious effects due to the increase in the sensitive group.

3 test basic principles

The test substance at different doses per day, respectively, a gradient applied to each group of animals exposed skin, a set of one dose, continuous 90d. dye During toxicity was observed signs of toxicity in animals every day. During the test of death and end of the test surviving animals to be sacrificed substantially Solutions Sectional, histopathological examination as needed. Test Method 4 4.1 test sample 4.1.1 The test substance is a solid or liquid; 4.1.2 test substance chemical identifying characteristics; 4.1.3 Purity test substance (type and content of impurities); 4.1.4 dissolution characteristics; 4.1.5 pH value (capable of measuring time); ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21764-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21764-2008_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 21764-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21764-2008_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.