ISO 20613:2019

Overview

ISO 20613:2019 - Sensory analysis - General guidance for the application of sensory analysis in quality control provides practical guidelines for implementing an in‑plant sensory analysis programme for quality control (QC). Applicable to both food and non‑food industries, the standard focuses on establishing sensory specifications, setting up sensory panels, choosing appropriate sensory methods, and integrating sensory results into QC decision‑making. It is explicitly limited to in‑plant sensory analysis and complements vocabulary standards such as ISO 5492.

Key topics and requirements

• Scope and purpose
  • Guidance for implementing and maintaining a sensory QC programme to monitor product quality and conformance.
• Elements of a sensory QC programme
  • Assessment from multiple perspectives (QA/QC practices, consumer feedback, production capability).
  • Coverage of all production phases: raw materials, in‑process and finished products.
  • Use of consumer‑derived sensory specifications to define key attributes and acceptable limits.
  • Integration of sensory and instrumental data; validate instruments against sensory responses.
  • Detailed record‑keeping for monitoring and corrective actions.
• Establishing sensory specifications/standards
  • Create paper standards (descriptions, key attributes) and physical control standards (reference samples).
  • Define calibration references to represent deviations (minor → major).
• Assessors and facilities
  • Procedures for selection, training and qualification of assessors for raw materials, in‑process and finished product evaluation.
  • Requirements for appropriate facilities and consistent sample preparation/evaluation conditions.
• Sensory methods
  • Recommended methods for QC: in‑out (pass/fail) tests, difference‑from‑control, descriptive analysis, and difference scoring with key attribute scales.
• Data handling
  • Statistical analysis, data presentation and use of control charts (e.g., X charts, closeness‑to‑control charts) to support decisions.

Practical applications and users

• Typical users: QC managers, sensory scientists, QA teams, R&D and production staff in food, beverage, cosmetics, fragrances, packaging and other consumer goods industries.
• Practical uses:
  • Routine in‑plant screening of batches (accept/reject).
  • Monitoring process drift and supplier/raw material deviations.
  • Validating instrumental measurements against sensory perception.
  • Defining consumer‑driven product specifications and handling consumer complaints.
• Benefits: improved product consistency, faster detection of sensory defects, better alignment of instrumental tests with human perception, and documented QC decisions.

Related standards

• ISO 5492 - Sensory analysis: Vocabulary (normative reference cited by ISO 20613:2019)

Keywords: ISO 20613:2019, sensory analysis, quality control, sensory QC programme, in‑plant sensory analysis, sensory specifications, sensory panel, difference‑from‑control, in‑out test.