BIS-ISI-CERTIFICATE
IS 4621:1975
Bolts, Nuts & Fasteners - Indicating Bolts for use in public baths and lavatories
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1. Summary about Indicating Bolts for Use in Public Baths and Lavatories
Indicating bolts are specialized fasteners used in sanitary fittings to indicate occupied or vacant status in public baths and lavatories. They are designed for smooth operation, corrosion resistance, and frequent public use.
2. Why BIS Certificate is Mandatory for Indicating Bolts
BIS certification is mandatory to ensure durability, corrosion resistance, and functional reliability in hygienic public environments where frequent usage is expected.
3. What is BIS Certified for Indicating Bolts
BIS certification verifies compliance with Indian Standards covering material quality, corrosion resistance, dimensional accuracy, and functional performance.
Tests required for Indicating Bolts for Use in Public Baths and Lavatories
| Title | Mandatory/Optional |
|---|---|
| Raw Material | Optional |
| Dimensions | Required |
| Manufacture | Required |
| Workmanship and Finish | Required |
| Thickness | Required |
| Quality of sealing | Optional |
| Colour and appearance | Required |
| Corrosion resistance | Required |
| Required | Required |
| Resistance to crazing by deformation | Required |
| Fastness to light | Optional |
| Light reflection properties | Optional |
| Required | Optional |
4. Benefits of BIS Certification for Indicating Bolts
- Ensures reliable operation in public facilities
- Mandatory for regulated sanitary installations
- Improves corrosion and wear resistance
- Reduces maintenance and replacement needs
- Builds confidence among authorities and users
Disclaimer.
The contents of this update are provided for general informational purposes only and do not constitute legal advice. Readers are encouraged to consult with professional legal counsel before taking action based on this information.
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