1 Scope
This Standard specifies a method with intermediate filtration for the determination of the crude fibre content. A manual procedure and a semi-automatic procedure are described.
The method is applicable to animal feeding stuffs with a crude fibre content greater than 10 g/kg.
Note: For animal feeding stuffs with a crude fibre content equal to or less than 10 g/kg, the method described in ISO 6541[7] may be used.
This International Standard is also applicable to cereals and pulses.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative documents referred to applies.
GB/T 6682 Water for Analytical Laboratory Use — Specification and Test Methods (eqv ISO 3696:1987)
GB/T 20195 Animal Feeding Stuffs — Preparation of Test Samples (ISO 6498:1998, IDT)
GB/T 14699.1 Animal Feeding Stuffs — Sampling (ISO 6497:2002, IDT)
3 Term and Definition
Foreword II
1 Scope
2 Normative References
3 Term and Definition
4 Principle
5 Reagents and Materials
6 Apparatus
7 Sampling
8 Preparation of Test Sample
9 Procedure for Manual Method
10 Procedure for Semi-automatic Method
11 Calculation
12 Precision
13 Test Report
Appendix A (Informative) Results of Interlaboratory Tests
Bibliography
