Overview
EN ISO 6869:2000 - Animal feeding stuffs - Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc - Method using atomic absorption spectrometry (ISO 6869:2000) - is a standardized analytical method adopted by CEN for measuring key mineral elements in animal feed using atomic absorption spectrometry (AAS). The document defines a reproducible laboratory procedure for quantifying essential macro‑ and micro‑elements important to feed composition, nutrition and regulatory compliance. The standard has been published in multiple national editions (e.g., SIST EN ISO 6869:2001).
Key topics and technical requirements
The standard focuses on analytic quality and method consistency for elemental determination in feed matrices. Core technical topics typically covered include:
- Scope of elements: determination of calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), potassium (K), sodium (Na) and zinc (Zn).
- Use of atomic absorption spectrometry as the measurement technique, including instrumentation considerations and method variants commonly applied in feed testing.
- Sample preparation and sample digestion procedures to convert heterogeneous feed matrices into solutions suitable for AAS measurement.
- Calibration and standards: procedures for preparing calibration solutions, use of certified reference materials and ensuring traceability of results.
- Quality control measures: blanks, duplicates, recovery checks and control charts to validate accuracy and precision.
- Matrix effects and interferences: guidance on addressing chemical or physical interferences that can affect absorbance readings.
- Reporting: expression of results in agreed units, detection limits and uncertainty considerations.
(Specific procedural parameters, instrument settings and quantitative limits are defined in the standard text and should be consulted directly for laboratory implementation.)
Applications and users
EN ISO 6869:2000 is used by:
- Analytical and feed testing laboratories performing routine mineral analysis of animal feeds and feed ingredients.
- Feed manufacturers conducting internal quality control and formulation verification.
- Regulatory authorities and certification bodies checking feed compliance with nutritional and safety standards.
- Research organizations studying nutrition, feed composition and mineral bioavailability.
Common applications include nutritional labeling verification, formulation control, contamination screening and compliance testing.
Related standards
This standard complements other ISO/CEN methods for feed analysis and elemental testing. Laboratories implementing EN ISO 6869:2000 often reference additional standards on sample handling, laboratory quality management and specific elemental analysis techniques.
Keywords: EN ISO 6869:2000, animal feeding stuffs, atomic absorption spectrometry, AAS, feed analysis, mineral determination, calcium, copper, iron, magnesium, manganese, potassium, sodium, zinc.