GB/T 6434-2022 in English

VALID

Determination of crude fiber content in feeds

Issued on:2022-12-30
Implemented on:2023-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 6434-2022
Document status:	VALID
Title in English:	Determination of crude fiber content in feeds
Title in Chinese:	饲料中粗纤维的含量测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-12-30
Implemented on:	2023-07-01
Superseding:	GB/T 6434-2006 Feeding stuffs - Determination of crude fiber content - Method with intermediate filtration
ICS Classification:	65.120-Animal feeding stuffs
Chinese Classification:	B46-Livestock and poultry feed and additive
Professional Classification:	GB-National Standard
Related Keywords:	crude fiber content low carbonate content acid digestion→ alkaline digestion→ filtration→ drying→ ashing high fat content new determination method modify key technical points determination
Related Topics:	fiber content fiber content GB/T 6434-2006 Feed calories Feed Energy Determination Does the feed contain thallium? Determination of Feed Content Method for Determination of Feed Sulfur Content Feed Energy Determination Determination of Feed Energy crude fiber crude fiber content GB/t+6434 crude cellulose content crude fiber quality Fiber detection content crude fiber straw What are the crude fiber determination methods What are the methods for the determination of crude fiber Analysis of Crude Fiber Content Determination of crude fiber content When determining the crude fiber content Feed Fiber Analysis crude fiber content Feed Fiber Analysis how about crude fiber Feed bismuth content Vanilla crude fiber automatic crude fiber Inorganic nitrogen content in feed gb/t6434-2006 Crude Fiber Analysis gb/t6434 Feed crude fiber content feed fiber Feed fiber content crude fiber feed Determination of Crude Fiber Content feed crude fiber feed crude fiber Yttrium content in feed fiber content measurement unit fiber feed Crude protein content in feed Nitrogen content in feed Method for Determination of Crude Ash Content in Feed Sulfur content in feed Mineral Feed Crude fat content in feed Determination of Phosphorus Content in Feed Crude protein content in feed crude cellulose content Crude fat content in feed Ash content in feed fiber feed crude oil in feed Determination of crude fat content in feed Feed contains Determination of Vitamin C Content Vitamin A content in feed medium fiber Determination of cellulose content content Nitrogen Determination Feed Determination of total acid content in feed What is the general content of coarse ash in the feed GBT6434 GBT6434-1994 GB/T 6434-2006 Antibiotic content in feed Determination of crude fiber and the purpose of adding diatomite Factors affecting the determination of crude fiber GB/T 6434-2022 Crude fiber content in feed What is the basis for measuring fiber content in wood? Feed crude fiber standard number Mercury content in feed Iron limit in feed Phosphorus content in feed Feed moisture content technology Determination of crude fiber content in food Heavy metal content in feed Differences in testing crude fiber in foods using feed methods Evaluation of crude ash content of feed China feed testing Method for measuring crude fiber in feed Determination method of fiber in soybeans Iron content in feed Implementation of feed crude fiber Calcium content in pig feed Crude fat content in feed The highest iron content in feed A rapid detection method for fiber in feed is gb/t6434-2022 Determination method of fiber in feed gb/t 6434-2022 gb t6434 gbt6434-2022 gb 6434-2022 gb 6434 gb6434 gb6434-2022 gbt6434-2006 crude fiber products Crude fiber dietary fiber determination method Determination method of crude fiber content in plants

《GB/T 6434-2022饲料中粗纤维的含量测定》由TC76（全国饲料工业标准化技术委员会）归口，主管部门为国家标准委。

Introduction

1. Standard Overview

GB/T6434-2022 specifies in detail the method for determining crude fiber content in feed, including the filter crucible method (arbitration method) and the filter bag method. This standard is applicable to the testing of compound feed, concentrated feed, concentrate supplement, additive premix feed and feed raw materials.

2. Main changes in the standard

Add filter bag method as a new determination method
Modify the scope of application to meet the needs of China's feed industry
Adjust the precision requirements to improve detection accuracy
Introduce the calibration method of sulfuric acid and potassium hydroxide solution

3. Analysis of key technical points

Determination method	Scope of application	Main steps	Precision requirements
Filter crucible method (manual operation)	Applicable to samples with high fat content and low carbonate content	Acid digestion→ Alkaline digestion→ Filtration→ Drying→ Ashing	When the crude fiber content is <5%, the absolute difference is ≤0.6%
Filter bag method	Applicable to common feed samples	Acid digestion → Alkaline digestion → Degreasing → Drying → Ashing	Same as the filter crucible method, but easier to operate

4. Implementation suggestions

Suggestion:In actual testing, the filter bag method is preferred to improve efficiency. For samples with high fat content, the filter crucible method should be used to ensure accuracy.

Notes:

Strictly control reagent concentration and preparation accuracy
Avoid contamination of samples during operation
Regularly calibrate instruments to ensure accurate measurements

More samples: NB/T 47013.2-2015 GB 50021-2001(2009) DL/T 368-2010

Sample only — not a preview of GB/T 6434-2022

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