When specifying or installing toilets in commercial washrooms, performance, durability and compliance are critical. BS EN 997:2018 is the British and European Standard that defines performance and testing requirements for WC pans and cisterns. Meeting this standard ensures toilets flush effectively, don’t leak, refill correctly, use water efficiently and last for years.
What BS EN 997:2018 Tests in WCs
BS EN 997:2018 ensures high-quality WC performance by testing:
• Flush effectiveness – complete waste removal in a single flush
• Leak prevention – secure water retention in pans and cisterns
• Correct refill – cisterns fill to the correct level each time
• Water efficiency – conserving water while maintaining performance
• No splashing or overflow – protecting users and surroundings
• Durability – long-lasting materials and components
These requirements are essential for commercial washroom projects, helping architects and contractors specify systems that meet safety, hygiene and regulatory standards.
Why BS EN 997:2018 Compliance Matters
Installing a WC and cistern that does not meet BS EN 997:2018 can lead to:
• Performance Issues - Without certification, flushing may be ineffective, seals may fail, and water may be wasted. This can result in complaints, call-backs and reputational damage for contractors.
• Regulatory Non-Compliance - Non-certified systems can be considered illegal. Water authorities may require removal, replacement or fine the contractor or building owner.
• Financial and Warranty Risks - No manufacturer warranty or insurance cover is available for damage, leaving repairs or replacements entirely at the contractor’s expense.
How we ensure compliance and reliability
Our SanCeram WC Pans have been tested with the Thomas Dudley Osmo®, Mirage and Miniflo Cisterns - fully meeting BS EN 997:2018, providing confidence to architects, specifiers and contractors.
For Architects & Specifiers
• Verified Performance Data: Ensure accurate design with measurable, certified results
• Design Assurance: Meet technical and aesthetic standards
• Water Efficiency: Supports sustainability goals and BREEAM credits
• Streamlined Specification: Pre-tested WC + cistern systems simplify the specification process
For Contractors
• Guaranteed Compatibility: Pre-tested systems prevent trial-and-error on site
• Simplified Compliance: Meets UK Building Regulations and Water Regulations
• Fewer Call-Backs: Reliable performance reduces site issues, saving time and labour
• Warranty & Quality Assurance: Certified products protect both contractor reputation and client investment
The Complete High-Performance Washroom Solution
A SanCeram WC paired with either the Thomas Dudley Osmo®, Mirage or Miniflo Cisterns, tested to BS EN 997:2018 provide one complete, compliant and high-performance system.
By choosing certified, pre-tested WC and cistern combinations, you can ensure:
• Regulatory compliance
• Reliable performance
• Reduced installation risk
• Long-term durability and peace of mind
Get in touch
Ready to specify a BS EN 997:2018-certified WC system? Contact us today to streamline your next commercial washroom project. Call our team on Tel: 01474 338 300 or email us at sales@theswc.co.uk