IS 7231 : 2021
LASTIC FLUSHING CISTERNS FOR WATER CLOSETS AND URINALS
summary
Plastic Flushing Cisterns for Water Closets and Urinals are sanitary devices used to store and discharge a measured quantity of water for flushing toilets and urinals. Made from durable plastic materials, they are lightweight, corrosion-resistant, and designed for efficient water flow, hygiene, and long-term bathroom installation performance.
Why BIS Certificate is Mandatory for LASTIC FLUSHING CISTERNS FOR WATER CLOSETS AND URINALS
BIS certification is mandatory to ensure flushing cisterns meet safety, durability, and water efficiency standards. Since they are essential sanitary fixtures connected to plumbing systems, BIS ensures proper material quality, leak-proof performance, structural strength, and water-saving compliance, protecting consumers from substandard, unsafe, or inefficient products.
What is BIS Certified for LASTIC FLUSHING CISTERNS FOR WATER CLOSETS AND URINALS
The BIS certified specification defines requirements for plastic material quality, construction design, flushing capacity, leak resistance, durability, and performance testing. It includes dimensional accuracy, impact resistance, operational efficiency, and water discharge performance to ensure reliable functioning in residential, commercial, and institutional sanitation systems.
Test required for LASTIC FLUSHING CISTERNS FOR WATER CLOSETS AND URINALS
| Title | Mandatory/Optional |
|---|---|
| Material (except for floats and float valves) | Optional |
CONSTRUCTION
| Title | Mandatory/Optional |
|---|---|
| Exposed Cistern | Required |
| Cover | Required |
| Flush pipe and flush pipe connection to cistern | Required |
| Inlet and overflow holes | Required |
| Float valves | -- |
| Floats | -- |
| Operating mechanism (Push-Knob) | Required |
| Overflow pipe | Required |
| Concealed Cistern: | Required |
| Opacity | Optional |
OPERATIONAL AND PERFORMANCE REQUIREMENTS
| Title | Mandatory/Optional |
|---|---|
| Flushing arrangement | Required |
| Working water level | Required |
| Freedom from Leakage | Required |
| Reduced water level | Required |
| Discharge capacity | Required |
| Discharge rate | Required |
SPECIAL REQUIREMENTS
| Title | Mandatory/Optional |
|---|---|
| Distortion Resistance test | Required |
| Dead load test | Required |
| Front thrust test | Required |
| Impact test | Required |
| Endurance test | Optional |
| Surface Wash test | Optional |
| Granule and ball test | Optional |
| Bean and Sausage test | Optional |
| Drain line transport characterization test | Optional |
| Overflow test for gravity flush tanks | Optional |
Benefits of BIS Certification for LASTIC FLUSHING CISTERNS FOR WATER CLOSETS AND URINALS
1. Assured Product Quality
BIS certification ensures plastic flushing cisterns meet standardized material and manufacturing requirements, reducing defects, cracks, and leakage issues during long-term usage.
2. Water Efficiency Compliance
Certified products follow prescribed flushing capacity norms, helping conserve water and supporting sustainable sanitation practices.
3. Safety and Durability
BIS standards verify impact resistance, structural strength, and reliable flushing mechanisms, ensuring safe and continuous operation.
4. Legal Market Authorization
BIS certification allows manufacturers and importers to legally sell cisterns in India and participate in government or institutional supply projects.
5. Increased Consumer Confidence
Products bearing the BIS mark gain higher trust among builders, contractors, and homeowners, improving brand reputation and market acceptance.