Overview
IEC 63203-204-1:2023 - "Wearable electronic devices and technologies - Part 204-1: Electronic textile - Test method for assessing washing durability of e-textile products" - defines a household washing durability test method for leisurewear and sportswear e-textile products that contain electrically conductive components and sensors. The standard sets out pre-test conditioning, washing and drying procedures, operation checks before and after laundering, resistance measurements (optional for conductive tracks) and test-reporting requirements. It does not cover safety or heat-generation testing and excludes products with components beyond those listed.
Key topics and technical requirements
- Scope: Applies to leisurewear and sportswear e-textile systems (textiles integrated with electronics for functions such as heart rate/temperature sensing).
- Preconditioning: Specimens stored at standard atmosphere per ISO 139 (20.0 ±2.0 °C, 65.0 ±5.0 % RH) for at least 24 h.
- Checklist before test: Verify device operation per the user manual; mark measurement points; optional measurement of conductive tracks per EN 16812.
- Washing procedure: Test methods use procedures from ISO 6330:2012. Default if unspecified: ISO reference washing machine Type A, washing procedure 4H, drying method A (line dry). Hand-wash conditions may be appropriate due to delicate conductive assemblies.
- Component handling: Detachable modules (batteries, connection modules) must be removed; embedded components remain during testing.
- Post-wash checks: Functional checks per user manual and resistance measurements to detect disconnections; number of cycles (K, J) determined by agreement - default K = 0; stop criteria include loss of function or broken conductive track.
- Reporting: Test report content expanded in the 2nd edition (Clause 6).
Notable changes in Edition 2 (2023): deletion of earlier subclauses on conductive textiles and leisurewear definitions, addition of a washing-procedure subclause, updated Figure 1 flowchart, optional conductive track measurement added to the checklist, and additions to Clause 6 reporting.
Applications
- Validating wash durability of smart sportswear, fitness garments, sensor-embedded shirts and other wearable e-textiles.
- Establishing baseline laundering protocols for product development, QA and durability claims.
- Supporting manufacturer-user agreements on wash conditions and acceptance criteria.
Who should use this standard
- e-textile and wearable electronics manufacturers
- Test laboratories and quality assurance teams
- Product designers and materials engineers working with conductive textiles
- Certification bodies and compliance officers assessing durability claims
Related standards
- ISO 6330:2012 - Domestic washing and drying procedures for textile testing
- EN 16812:2016 - Determination of linear electrical resistance of conductive tracks
- ISO 139 - Standard atmospheres for conditioning and testing
Keywords: IEC 63203-204-1:2023, e-textile, wearable electronic devices, washing durability test, conductive tracks, resistance measurement, ISO 6330, EN 16812.