IS 1729 BIS Certification for Cast Iron/ductile Iron Drainage Pipes and Pipe Fittings for Over Ground Non-pressure Pipelines Socket and Spigot Series
Cast Iron/ductile Iron Drainage Pipes and Pipe Fittings for Over Ground Non-pressure Pipelines Socket and Spigot Series made, imported or sold in India must be certified against IS 1729 under an ISI mark licence (Scheme-I). What the standard covers, how testing works and how to get the licence.
About IS 1729
| Standard | IS 1729:2002 |
|---|---|
| Title | Cast iron/ductile iron drainage pipes and pipe fittings for over ground non-pressure pipelines socket and spigot series |
| Product covered | Cast Iron/ductile Iron Drainage Pipes and Pipe Fittings for Over Ground Non-pressure Pipelines Socket and Spigot Series |
| Category | Cast Iron Products |
| Scheme | ISI mark licence (Scheme-I) |
| Notified under | Cast Iron Products (Quality Control) Order, 2023, S.O. 3806(E), dated 24th August 2023 · Order PDF |
Editions and amendments of IS 1729
| Edition | Published | Status |
|---|---|---|
| IS 1729:2023 SAND CAST IRON SPIGOT AND SOCKET PIPES, FITTINGS AND ACCESSORIES SPECIFICATION | 30 Oct 2023 | Current, next review 31 Oct 2028 |
| IS 1729:2002 Cast iron/ductile iron drainage pipes and pipe fittings for over ground non-pressure pipeline socket and spigot series (Second Revision) | 30 Jun 2002 | Withdrawn 17 Sept 2024 |
No amendments to the current edition are listed by BIS.
Marking fee for IS 1729
BIS charges an annual minimum marking fee for the ISI mark under IS 1729, set by unit size, plus a per-unit rate once production passes the minimum:
| Unit size | Minimum marking fee (per year) |
|---|---|
| Large | ₹62,000 |
| Medium | ₹50,000 |
| Small | ₹31,000 |
| Micro | ₹12,400 |
Unit rate: ₹34.45 per tonne. Source: BIS marking fee schedule for Scheme-I products, September 2026.
Sampling and key tests for IS 1729
From the BIS product manual for IS 1729, which BIS officers and applicants follow for certification:
Tests BIS can carry out in a day during factory inspection:
- All Chemical and Physical Tests PM/ 1729/ 2 Jan 2024
The full type test covers every clause of IS 1729; the list above is what can be checked on site.
ISI licences under IS 1729
BIS records 3 operative licences (3 including deferred, cancelled or under stop marking). Most licensed factories are in West Bengal (2), Rajasthan (1).
Testing against IS 1729
BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.
The test report has to cover every clause of IS 1729 that applies to the product, in the edition current on the date of testing. When BIS revises IS 1729 or replaces it with a new edition, existing licence holders move to the new edition by the date BIS sets in its notification.
How to get an ISI mark licence under IS 1729
The licence is granted to the manufacturer for a specific factory and product. Indian factories apply under Scheme-I; overseas factories apply under the Foreign Manufacturers Certification Scheme (FMCS) and must nominate an Authorised Indian Representative.
- Confirm the exact Indian Standard and the varieties to cover
- Get the product tested at a BIS-recognised lab (simplified procedure) or arrange BIS sampling
- Apply on Manak Online with factory, quality-control and test documents
- BIS factory inspection and sample verification
- Grant of licence, then marking with the ISI mark and CM/L number
Timeline. BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.
Fees. Application fee ₹1,000 and annual licence fee ₹1,000, inspection charges of ₹7,000 per man-day, testing charges, and an annual minimum marking fee set for each Indian Standard (with concessions for micro and small units).
Mark. Certified products carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.
Frequently asked questions
What does IS 1729 cover?
IS 1729:2002: Cast iron/ductile iron drainage pipes and pipe fittings for over ground non-pressure pipelines socket and spigot series. BIS has made certification against it compulsory for cast Iron/ductile iron drainage pipes and pipe fittings for over ground non-pressure pipelines socket and spigot series.
Is BIS certification under IS 1729 mandatory?
Yes, for cast Iron/ductile iron drainage pipes and pipe fittings for over ground non-pressure pipelines socket and spigot series, under the Cast Iron Products (Quality Control) Order, 2023, S.O. 3806(E). The product needs a valid BIS licence (ISI mark) and must carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.
Where is a product tested for IS 1729?
BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.
How long does IS 1729 BIS certification take?
BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.
Other standards in Cast Iron Products
- IS 210 Grey Iron Castings
- IS 1537 Vertically Cast – Iron Pressure Pipes for Water, Gas and Sewage
- IS 1726 Cast Iron Man Hole Covers and Frames
- IS 1879 Malleable Cast Iron Pipe Fittings
- IS 13349 Cast Iron Single Faced Thimble Mounted Sluice Gates
Source: BIS lists of products under compulsory certification (Scheme-I, Scheme-II), checked October 2026. See the full BIS product list or all Indian Standards.
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