GB/T 28643-2012 (English Version) PDF

Standard No.: GB/T 28643-2012
Language: Chinese, Available in English version
Release Date: 2012
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 28643-2012

Scope: This standard specifies the determination of 17 2,3,7,8-chloro-substituted polychlorinated dibenzodioxins (PCDDs) and polychlorinated dioxins in feed by isotope dilution-high resolution gas chromatography/high resolution mass spectrometry. Benzofurans (PCDFs) (hereinafter referred to as PCDD/Fs) and 12 kinds of dioxin-like polychlorinated biphenyls (DL-PCBs) (see Table A.1 and Table A.2). This standard applies to feed raw materials, compound feeds, concentrated feeds, concentrate supplements, additive premixed feeds and feed additives. The detection limits of PCDD/Fs and DL-PCBs in feed analyzed by this standard method are shown in Table B.1.

GB/T 28643-2012 Referenced Document

GB/T 14699.1 Feeding stuffs--Sampling
GB/T 20195 Animal feeding stuffs--Preparation of test samples
GB/T 5009.205-2007 Determination of toxic equivalencies of dioxin and dioxin-like compounds in foods
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

2012 GB/T 28643-2012 Determination of PCDD/Fs and dioxin-like PCBs in feeds.Isotope dilution HRGC/HRMS