GB/T 14700-2002 Determination of vitamin B1 in feed
Basic Information
Standard ID:
GB/T 14700-2002
Standard Name: Determination of vitamin B1 in feed
Chinese Name:
饲料中维生素B1的测定
Standard category:National Standard (GB)
state:in force
Date of Release2002-10-31
Date of Implementation:2003-04-01
standard classification number
Standard ICS number:Agriculture>>65.120 Feed
Standard Classification Number:Agriculture & Forestry>>Animal Husbandry>>B46 Animal Feed and Additives
Publication information
publishing house:China Standards Press
ISBN:155066.1-19197
Publication date:2003-04-01
other information
Release date:1993-11-06
Review date:2004-10-14
Drafting unit:National Feed Quality Supervision and Inspection Center
Focal point unit:National Feed Industry Standardization Technical Committee
Publishing department:National Standardization Administration
competent authority:National Standardization Administration
Introduction to standards:
This standard specifies two methods for determining the content of vitamin B1 (thiamine) in feed using a fluorescence spectrophotometer and a high performance liquid chromatograph. Method 1 specified in this standard is applicable to the determination of vitamin B1 in feed raw materials, compound feeds, concentrated feeds, compound premixes, and vitamin premixes. The solution range of the extract is 0.02μg/Ml to 0.2μg/Ml (this method is not applicable in the presence of interfering substances that adsorb thiamine or affect the fluorescence of thiochromes). Method 2 specified in this standard is applicable to the determination of compound premixes and vitamin premixes with a vitamin B1 content greater than 20mg/kg. GB/T 14700-2002 Determination of vitamin B1 in feed GB/T14700-2002 Standard download decompression password: www.bzxz.net