GB/T 15670.5-2017 in English
VALIDToxicological test methods for pesticides registration. Part 5: Acute dermal toxicity test
- Issued on:2017-07-12
- Implemented on:2018-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 15670.5-2017农药登记毒理学试验方法 第5部分:急性经皮毒性试验》由326(农业农村部)归口,主管部门为农业农村部。
Introduction
GB/T 15670.5-2017 Standard Overview
GB/T 15670.5-2017 "Toxicology Test Methods for Pesticide Registration Part 5: Acute Dermal Toxicity Test" is an indispensable and important standard in the pesticide registration process. This standard mainly stipulates the basic principles, methods and requirements of acute dermal toxicity tests, aiming to evaluate the health damage effects of pesticides on experimental animals and provide data support for subsequent toxicology studies.
Core Contents of Acute Dermal Toxicity Test
| Standard Requirements | Specific Specifications | New/Changed Content |
|---|---|---|
| Purpose of the Test | To evaluate whether the pesticide can be absorbed through the skin and its toxic action mode | - |
| Selection of Experimental Animals | Rats, Rabbits, Guinea Pigs | New Principles for Selecting Animals of Sensitive Sexes |
| Dose Grouping | At least 3 dose groups | Modified to at least 3 dose groups, new limit test requirements |
| Exposure Time | 24-hour continuous contact | Changed from 4 hours to 24 hours |
| Result processing | Calculation of LD50 and 95% confidence interval | Added requirements for dose-response relationship analysis |
Test methods and steps
Test material preparation: Liquid test materials use stock solutions, and solid test materials need to be sieved through a 100-mesh sieve before moistening.
Experimental animal preparation: Animals need to adapt to the test environment for 3-5 days and be kept in single cages to avoid mutual interference.
Implementation recommendations
Precautions for practical application
- Animal selection: Rats should be given priority according to experimental conditions. If other species are to be used, the reasons should be stated.
- Dose setting: The dose range is determined in the preliminary test, and the dose gradient is designed using the Horn method or the probability unit method.
- Toxicity assessment: The acute dermal toxicity level is determined by the LD50 value and the 95% confidence interval.
- Data recording: Use a structured table to record the animal number, gender, dose, weight and observations.

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