This standard covers the material, dimensional, and manufacturing requirements for vitreous china wash basins, including flat back and angle back varieties. It ensures adequate performance, hygiene, and compatibility with standard plumbing fixtures.
Specifies requirements for vitreous china wash basins, covering dimensions, quality, and performance.
Quick Reference Values
Tolerance for dimensions >= 75 mm± 4%
Tolerance for dimensions < 75 mm± 3 mm
Minimum thickness of body6 mm
Waste hole diameter45 mm to 48 mm
Minimum overflow slot area5 cm²
Practical Notes
Always verify the waste hole diameter before ordering trap fittings to avoid connection issues.
Account for the ±4% dimensional tolerance when designing custom countertops or tight vanity spaces.
Ensure the wall mounting brackets correspond to the standard fixing hole locations specified for the selected basin type.