TS 8357

TS 8357 is a service standard prepared for the classification and minimum characteristics of public lavatories open to the public or to customers. Its subject is the level of provision expected in washrooms used in tourism areas, accommodation and food-service premises, transport facilities, retail centers, places of worship, roadside businesses, and similar public settings. The standard is now withdrawn, but it served as a common minimum framework and classification language for its time.

The technical framework behind the classification

In this context, “classification” means grouping lavatories according to factors such as use intensity, user profile, and the type of facility served. “Minimum requirements” generally refers to basic service elements such as cleanliness, privacy, ventilation, lighting, water supply, and hygiene-related equipment. The aim is to define a consistent level of service for public toilets, while the practical design is typically considered together with general principles of washroom planning and operation.

Why the subject matters in public facilities

Public lavatories differ from domestic bathrooms because they must handle frequent turnover, varied user needs, and continuous operation. A classification-based approach helps balance the nature of the venue, expected occupancy, and the standard of service. In general technical terms, this means looking at fixtures such as basins, closets, urinals, ease of cleaning, and user comfort as a connected system rather than as isolated items. The value of TS 8357 lies in providing a shared minimum reference for these different usage scenarios.

• Prepared for lavatories open to the public and to customers.
• Covers tourist areas, parks, rest areas, restaurants, hotels, motels, boarding houses, bus terminals, shopping centers, mosques, roadside businesses, and similar places.
• Addresses both the classification of lavatories and their minimum service and equipment characteristics.
• Provides a common service baseline for public-use conditions.