This standard specifies the terms and definitions, basic requirements, field test design, final residual quantity test, residue degradation test, field sample, laboratory sample, residue test, test record, test report and other requirements for the testing of pesticide residues in crops.
This standard is applicable to the residue test for pesticide registration and is used for the development of guidelines on the dietary intake evaluation, maximum residue limits and rational use of pesticides.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2763 National food safety standard - Maximum residue limits for pesticides in food
NY/T 789 Guideline on sampling for pesticide residue analysis
Decree [2017] No.7 of the Ministry of Agriculture Measures for the management of pesticide label and manual
Announcement No.2308 of the Ministry of Agriculture Guidance on risk assessment of pesticide residues in food
Guidelines for the development of maximum residue limits for pesticides in food
Announcement No.2386 of the Ministry of Agriculture Guidelines for the preparation of national standards for pesticide residue test methods
Announcement No.2569 of the Ministry of Agriculture Data requirements on pesticide registration
Announcement No.2579 of the Ministry of Agriculture Good experimental practice for pesticide registration trails
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 2763 and the Announcements No.2308 and No.2386 of the Ministry of Agriculture and the following apply.
3.1
recommended application dosage
application dosage of the tested pesticide product proposed after efficacy trial to protect a kind of crop against diseases, insects and grasses
3.2
interval to harvest
the number of days between the harvest and the last application of pesticide
3.3
pre-harvest interval (PHI)
the number of days between the harvest and the last application of pesticide during actual use of the pesticide product as approved by the pesticide registration management department after confirmation though residue test
3.4
field sample
test sample collected according to the prescribed method, including field test samples and storage test sample
3.5
laboratory sample
sample prepared from field sample for storage, test and retest
4 Basic requirements
4.1 Test background information
The background information includes the names, CAS Nos and physical and chemical properties of the active ingredients in pesticides, the name and formulation of the tested pesticide product, the contents of active ingredients, the registered crops and control objects, the recommended application dosage, method, period and times, the application interval and pre-harvest interval, the metabolism data of pesticides in plants, the stability data of stored pesticide residues, the residues, the test methods, and the maximum residue limits (MRL) applicable at home and abroad.
