Similar International Standards
BS EN 200:2008CEN - European Committee for Standardization / BSI - British Standards Institution (UK)
MediumCurrent
Sanitary tapware - Single taps and combination taps for water supply systems of type 1 and type 2 - General technical specification
Covers single taps, but is much broader, including mixers and modern mechanisms like ceramic discs.
AS/NZS 3718:2005Standards Australia / Standards New Zealand
MediumCurrent
Water supply - Tap ware
A comprehensive standard for all tapware, which includes the basic types covered by IS 8931.
BS 1010-2:1973BSI - British Standards Institution (UK)
HighWithdrawn
Specification for draw-off taps and stopvalves for water services (screw-down pattern). Metric units
Very similar in scope, focusing specifically on traditional screw-down pattern metal taps and stopvalves.
ASME A112.18.1 / CSA B125.1ASME - American Society of Mechanical Engineers / CSA - Canadian Standards Association
LowCurrent
Plumbing Supply Fittings
Covers all plumbing supply fittings with a strong focus on low-lead material requirements not central to IS 8931.
Key Differences
≠IS 8931 specifies a mechanical endurance of 10,000 cycles for bib taps, whereas BS EN 200 requires a significantly higher 200,000 cycles, and AS/NZS 3718 requires 50,000 cycles.
≠IS 8931 allows traditional leaded brass (e.g., CuZn39Pb2), while standards in North America (ASME A112.18.1) and Europe have stringent requirements for low-lead or lead-free alloys for surfaces in contact with potable water.
≠The scope of IS 8931 is narrowly focused on cast brass/gunmetal screw-down taps. In contrast, BS EN 200 and AS/NZS 3718 cover a wide range of modern tapware, including ceramic disc cartridges, thermostatic mixers, and electronic controls.
≠IS 8931 defines two pressure classes (Class 1 at 0.5 MPa, Class 2 at 1.0 MPa), while BS EN 200 uses flow/pressure types (Type 1 for high pressure, Type 2 for low pressure) and acoustic groupings, reflecting a different classification philosophy.
Key Similarities
≈All standards mandate fundamental performance tests, including hydrostatic body strength and seat watertightness, to ensure the tap is free from leaks under operational pressure.
≈Copper alloys (brass, gunmetal/bronze) are a primary material group specified or permitted for the main body construction across all the compared standards.
≈Each standard includes requirements for minimum flow rates to ensure the tap provides a functional water delivery, although the test pressures and specific rates vary.
≈The standards specify dimensional characteristics for threaded ends to ensure compatibility with standard plumbing connections in their respective regions.