GB/T 6433-2006: Determination of crude fat in feeds

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Scope

This Standard specifies a method for the determination of the fat content of animal feeding stuffs. The method is applicable to animal feeding stuffs except oilseeds and oilseed residues.
For the purposes of this method, the following two categories of animal feeding stuffs are distinguished. Samples of products in category B need a hydrolysis step prior to extraction.
Category B.
- straight feeds of animal origin, including milk products;
- straight feeds of vegetable origin from which fats cannot be extracted without prior hydrolysis; in particular. gluten, yeast, soya and potato proteins, and heat-treated feeds;
-compound feeds containing the preceding products in such quantities that at least 20 % of the fat content stems from these products.
Category A. animal feeding stuffs not mentioned under category B.
For oilseeds, a method for the determination of the “oil content" by hexane extraction is specified in ISO 659[1].
NOTE. For oilseed residues, a method for the determination of the "oil content" by hexane extraction is specified in ISO 734-1[2], whereas a method for the determination of the “oil content" by diethyl ether extraction is specified in ISO 736[3].

Basic Data

Standard ID	GB/T 6433-2006 (GB/T6433-2006)
Description (Translated English)	Determination of crude fat in feeds
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	B46
Classification of International Standard	65.120
Word Count Estimation	10,164
Date of Issue	2006-06-09
Date of Implementation	2006-09-01
Older Standard (superseded by this standard)	GB/T 6433-1994
Quoted Standard	GB/T 6682; GB/T 20195
Adopted Standard	ISO 6492-1999, IDT
Regulation (derived from)	National Standard Approval Announcement 2006 No.8 (Total No.95)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the determination of the fat content of animal feed. This method is suitable for animal feed oilseeds and oilseed residues outside. To determine the effectiveness of the method, the animal feed into the following categories: Sample B hydrolysed products of the extraction. Class B: -pure animal feed, including dairy products, -fat can not be extracted without prior hydrolysis of pure plant feed, such as gluten, soybean and potato protein and feed heat treatment, , yeast-contains a certain number of feed processing products, the fat content of at least 20% from these processed products. Class A