Key Takeaways
- IS 3622 is the Indian Standard for sandstone slabs and tiles for flooring and cladding.
- It sets limits for properties such as water absorption, transverse strength and abrasion.
- Test methods for stone strength and absorption are given in IS 1121 and IS 1124.
- Ask for recent, batch-specific test reports from an accredited laboratory.
Photos show colour, not quality. A standard and a test report show quality. This guide keeps the technical side simple.
What is IS 3622?
IS 3622:1977 is the Bureau of Indian Standards specification for sandstone (slabs and tiles) used in flooring and cladding. It lays out physical property requirements, along with dimensions and finish expectations.
Key properties to understand
The standard sets limits that help predict how stone behaves in service.
| Property | Why it matters | Reference |
|---|---|---|
| Water absorption | Lower absorption means better frost, stain and weather resistance | IS 3622 limit: not more than 2.5%; test method IS 1124 |
| Transverse strength | Resistance to bending and breaking under load | IS 3622 minimum: 7 N/mm²; test method IS 1121 (Part 2) |
| Abrasion | Wear in walked-on floors | IS 3622 limit; test method IS 1706 |
| Compressive strength | Load-bearing capacity | Test method IS 1121 (Part 1) |
Verify before you specify
Values quoted here come from published summaries of the standard — confirm limits against the current BIS text for your specification.
Questions to ask your supplier
These questions reveal how serious a supplier is about quality.
- Do you own the quarry or buy from traders?
- Can you share recent test reports for this batch?
- Which laboratory tested it, and to which methods?
- How do you control thickness and colour consistency?
- How is the stone packed to prevent transit damage?
Our approach
As a quarry owner we control extraction and grading, calibrate thickness in-house and pack for road and sea. Our published stone data shows compressive strength above 68 MPa and water absorption near 1.1%. We share available test documentation on request.
Standards and test reports turn a stone choice into a specification. Ask for them — and if you want ours, contact Dholpurstones.com.
Frequently Asked Questions
What does IS 3622 cover?
IS 3622 (1977) covers sandstone slabs and tiles used for flooring and cladding, including requirements for physical properties and dimensions.
Which tests matter most for outdoor stone?
Water absorption, strength (compressive and transverse), abrasion resistance and durability against weathering are the key checks.
Can you share test reports?
Ask via the enquiry form or WhatsApp — our team can share available test documentation for the stone you are considering.
