ISO 5984-2022 PDF

Full title and description

ISO 5984:2022 — Animal feeding stuffs — Determination of crude ash. This international standard specifies a laboratory method for determining the crude ash content of animal feeding stuffs (feeds), giving the procedure for sample preparation, incineration and calculation of results for use in feed analysis and quality control.

Abstract

This document specifies a method for the determination of crude ash of animal feeding stuffs. It defines the test principle, general precautions, the procedure for igniting samples to constant mass, and the way results are calculated and reported for routine and regulatory feed analysis.

General information

• Status: Published.
• Publication date: 27 April 2022 (published April 2022).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 65.120 (Animal feeding stuffs).
• Edition / version: 3 (Third edition, 2022).
• Number of pages: 7.

Scope

ISO 5984:2022 establishes a standardised laboratory method for determining the crude ash content of animal feeding stuffs. The scope covers the procedural steps from sample preparation through controlled incineration (to remove combustible material) to the determination of residue mass, and specifies how to express and report the crude ash result for feed materials and compound feeds used in animal nutrition, research and regulatory compliance.

Key topics and requirements

• Principle: determination of inorganic residue after complete burning of organic matter (crude ash) by incineration of a weighed sample.
• Sample preparation and representative sampling to ensure test accuracy and repeatability.
• Controlled ignition/incineration procedure (use of a muffle furnace and ignition to constant mass) and precautions to avoid loss or contamination of residue.
• Calculation and expression of results (crude ash reported as a percentage of the original sample mass) and requirements for reporting precision and repeatability where applicable.
• Applicability to a wide range of animal feeding stuffs for routine laboratory analysis and quality control.

Typical use and users

Laboratories analysing animal feeds (commercial, veterinary and research laboratories), feed manufacturers’ quality-control teams, regulatory authorities monitoring feed composition, and standards organisations use ISO 5984:2022 to obtain a consistent, repeatable measurement of crude ash in feed materials and compound feeds.

Related standards

ISO 5984:2022 sits within the portfolio of ISO/TC 34/SC 10 standards on animal feeding stuffs and analytical methods. Related documents include the earlier withdrawn ISO 5984:2002 (and its corrigendum) which this edition replaces, and other international, regional and national test methods for feed analysis (for example AOAC Official Methods and various EN/national standards covering proximate analysis and specific component determinations in feeds). Laboratories should consider companion methods for moisture, crude protein, crude fat and fibre when performing a full proximate analysis.

Keywords

animal feeding stuffs, feed analysis, crude ash, ash determination, incineration, muffle furnace, ISO 5984:2022, feed quality, proximate analysis

FAQ

Q: What is this standard?

A: ISO 5984:2022 is an international standard that specifies a laboratory method for determining the crude ash content of animal feeding stuffs (third edition, published April 2022).

Q: What does it cover?

A: It covers the procedure from sample preparation to ignition/incineration to constant mass and the calculation and reporting of crude ash results for feed materials and compound feeds.

Q: Who typically uses it?

A: Feed-testing laboratories, feed manufacturers’ quality teams, regulatory bodies, and researchers involved in animal nutrition and feed composition analyses.

Q: Is it current or superseded?

A: It is current (published April 2022) and supersedes the previous ISO 5984:2002 edition (and its corrigendum). The 2022 document is the third edition.

Q: Is it part of a series?

A: It is part of analytical method standards maintained by ISO/TC 34/SC 10 for animal feeding stuffs; users typically apply it alongside other proximate-analysis standards (moisture, protein, fat, fibre) for comprehensive feed characterisation.

Q: What are the key keywords?

A: Animal feeding stuffs; crude ash; ash determination; feed analysis; incineration; muffle furnace; ISO 5984.