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GB/T 13917.9-2026Laboratory efficacy test methods and criteria for public health insecticides for pesticide registration - Part 9: Repellents (English PDF)

农药登记用卫生杀虫剂室内药效试验及评价　第9部分：驱避剂

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 30, 2026

Implementation date

November 1, 2026

Scope

GB/T 13917.9-2026 is the English-translated version of 农药登记用卫生杀虫剂室内药效试验及评价　第9部分：驱避剂.

GB/T 13917.9-2026 is the Chinese national standard covering the efficacy test for a repellent - measured on human volunteers by the protection time before the first bite, which is a different kind of test from the ones that count dead insects. The registration of any household insecticide in China rests on these laboratory efficacy tests: the test insects and their rearing, the chamber and the application, the knockdown and mortality observed and the criteria a product has to meet. It replaces GB/T 13917.9-2009 and has been in force since 1 November 2026, one of the parts of the GB/T 13917 series revised together. It was issued on 30 April 2026 and takes effect on 1 November 2026, replacing GB/T 13917.9-2009. The document is under the responsibility of the Ministry of Agriculture and Rural Affairs. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

Document preview — GB/T 13917.9-2026

National Standard of the People's Republic of China

ICS: 65.100
Classification: B 17
Replacing: GB/T 13917.9-2009

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

4 Test materials
6 Test Methods
6.2 Repellent Test
8 Evaluation Indicators
9 Repellents

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 9 of GB/T 13917 "Indoor Efficacy Tests and Evaluation of Sanitary Insecticides for Pesticide Registration". GB/T 13917 The following sections have been released.

1.Spraying formulations;

4.Mosquito Coils;

5.Electric Mosquito Repellent Mats;

6.Electric Mosquito Repellent Liquid;

8.Powders and Pencils;

10.Simulated Scene This document replaces GB/T 13917.9-2009 "Indoor Efficacy Tests and Evaluation of Sanitary Insecticides for Pesticide Registration - Part

9.Repellents". Compared with GB/T 13917.4-2009, the main technical changes in the "Agent" are as follows, except for structural adjustments and editorial modifications.

a) The term and definition of "repellent" have been added (see 3.1);

b) Increased requirements for the test reagents (see 4.1);

c) The requirements for the test targets have been changed (see 4.2, Chapter 2 of the.2009 edition);

d) The test method was changed (see Chapter 6, Chapter 4 of the.2009 edition);

e) The number of significant digits in the calculation results has been changed (see Chapter 7, Chapter 5 in the.2009 edition);

4 Test materials

4.1 Test reagents Please specify the generic name or code of the drug in Chinese/English, dosage form, content of active ingredient, manufacturer, production date or batch number, etc.

4.2 Test Target Aedes albopictus mosquitoes were reared according to the method in NY/T 1964.3, and test insects were selected on the 5th day after emergence. Day 7, non-blood-feeding female adult worms weighing

5.Instruments and Equipment Mosquito cage, 400mm long, 300mm wide, and 300mm high.

6 Test Methods

6.1 Test Conditions Temperature. (26±2)°C. Relative humidity. (65±10)%.

6.2 Repellent Test

6.2.1 Attack Power Test 300 test insects were placed in a mosquito cage. The tester's hand had 40mm x 40mm of skin exposed on the back of their hand, with the rest completely covered. The hand was then placed inside the cage. Observe the mosquitoes landing inside the mosquito cage. When a mosquito lands on an exposed surface and makes a biting motion, immediately shake your arm to drive it away; record this as a successful mosquito landing. One test. Testers and test insects whose insects land more than 30 times within 2 minutes are deemed to have passed the attack capability test. Testers and insects with passed the attack capability test... Only then can the avoidance test be conducted.

6.2.2 Avoidance Test Select four or more test subjects with qualified attack power (half male and half female, and they should not drink alcohol, tea, or coffee before or during the test). (Using fragrance-containing products), mark a 50mm x 50mm area in the center of the skin on the back of each hand, and apply 1.5mg/cm^2 to each hand. Apply the ointment-based repellent or 1.5 µL/cm^2 (liquid repellent) evenly to the marked area, exposing a 40 mm × 40 mm section of skin. Skin was covered, the rest of the hand was concealed, and the other hand served as a blank control. Two hours after applying the repellent, the hand was immersed in a mosquito cage with adequate attack power for 2 minutes. Observe whether mosquitoes come to land and suck blood. Then, test every hour; if mosquitoes come to suck blood within 2 minutes, the attempt to repel them has failed. Record the effective protection time (h) of the repellent. For each test, first perform an attack test using a control hand; if the insect's attack strength is satisfactory, continue the test. If the insect's attack power is insufficient, a qualified test insect must be used and the test repeated.

7.Calculation The effective protective time of the test drug in 4 or more subjects is added together, and the average of the sums (rounded to two decimal places) is taken as the protective time of the drug. Protection time (H). Protection time H is calculated according to formula (1).

8 Evaluation Indicators

The efficacy of the repellent was evaluated based on the duration (in hours) of protection provided to the test subjects. If the protection time was greater than or equal to

4.00 hours, the tested product... qualified.

9 Repellents

1.Scope This document describes the indoor efficacy testing methods and evaluation of test results for pesticide repellents for pesticide registration. This document applies to the efficacy determination and evaluation of repellents against biting and bothersome mosquitoes during pesticide registration.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

GB 13641-2025General technical conditions of skin-protective agent for workers

Editions of GB/T 13917.9

Edition	Title	Revision	Status
GB/T 13917.9-2026	Laboratory efficacy test methods and criteria for public health insecticides for pesticide registration - Part 9: Repellents	current edition	Current
GB/T 13917.9-2009	Laboratory efficacy test methods and criteria for public health insecticides for pesticide registration - Part 9: Repellents	previous edition	In force until 1 November 2026

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