Overview
ISO 2292:2017 - "Cocoa beans - Sampling" specifies general conditions and practical procedures for obtaining representative samples of cocoa beans for quality determination. The standard covers sampling methods for both bagged and bulk cocoa beans, describes required apparatus (e.g., sampling spears, scoops, dividers), and sets rules for preparing composite and reference samples for laboratory analysis and contractual verification.
Key topics and technical requirements
- Scope: Procedures for sampling cocoa beans in bags and in bulk to obtain representative material for quality assessment.
- Sample types and definitions:
- Primary sample - taken from a single randomly selected sound bag.
- Incremental sample - small quantity (≤ 1 kg) drawn from bulk lots.
- Composite sample - mixture of all primary or incremental samples.
- Reference sample - result of successive quartering of the composite sample; minimum 2 kg net.
- Minimum/maximum lot representation:
- A single reference sample shall not represent more than 250 t; larger lots must be split.
- When multiple shipping marks are used, each mark ≥ 25 t should be sampled separately.
- Sampling rates and frequency:
- For bagged cocoa: sample a minimum of 30% of the sound bags; 300 beans per tonne minimum sample amount.
- For bulk: incremental samples not exceeding 1 kg, with a minimum of 300 beans per tonne, taken systematically during loading/discharge.
- Apparatus and reduction:
- Use sampling spears/horns for bags and scoops or automatic samplers for moving streams; use conical dividers, quartering irons or suitable apparatus for reducing composite samples.
- Handling, sealing and documentation:
- Composite samples must be mixed on a clean surface and reference samples sealed promptly. Clause references include guidance on sampling periods (5.6), reporting (Clause 6), and sample retention (Annex C).
Practical applications - who uses ISO 2292:2017
- Cocoa exporters/importers and traders - to ensure contractually agreed quality is verified.
- Warehouse operators and logistics providers - for compliant sampling during storage, loading and discharge.
- Quality control laboratories - to receive representative samples for analysis (in conjunction with ISO 2451 for quality requirements).
- Inspectors, surveyors and samplers - to follow standardized procedures that support dispute resolution and traceability.
- Regulatory bodies and certification schemes - for consistent sampling protocols in audits.
Related standards and annexes
- Related: ISO 2451 (Cocoa beans - Specification and quality requirements) is referenced for terms and quality analysis.
- Informative annexes in ISO 2292:2017 provide apparatus examples (A), bag sampling guidance (B), sample retention (C), and an example sampling report (D) - useful for implementation and record keeping.
Keywords: ISO 2292:2017, cocoa bean sampling, sampling cocoa beans, composite sample, reference sample, sampling from bags and bulk.
