This document describes the gas chromatography method for the determination of HCH and DDT in feeds. This document is applicable to the determination of α-HCH, β-HCH, γ-HCH, δ-HCH, p,p'-DDE, o,p'-DDT, p,p'-DDD and p,p'-DDT in compound feeds, feed concentrates, concentrate supplements, premixes containing additives and raw materials of feeds. The detection limit and limit of quantitation in this document are in accordance with Appendix A.
Basic Data
Standard ID
GB/T 13090-2025 (GB/T13090-2025)
Description (Translated English)
Determination of HCH and DDT in feeds
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
B46
Classification of International Standard
65.120
Word Count Estimation
10,148
Date of Issue
2025-08-01
Date of Implementation
2026-02-01
Older Standard (superseded by this standard)
GB/T 13090-2006
Issuing agency(ies)
State Administration for Market Regulation, Standardization Administration of China
