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Indian Standard · ISI Mark

IS 15905 BIS Certification for Hubless Centrifugally Cast (Spun) Iron Pipes, Fittings and Accessories – Spigot Series

Hubless Centrifugally Cast (Spun) Iron Pipes, Fittings and Accessories – Spigot Series made, imported or sold in India must be certified against IS 15905 under an ISI mark licence (Scheme-I). What the standard covers, how testing works and how to get the licence.

About IS 15905

StandardIS 15905: 2011
TitleHubless centrifugally cast (Spun) iron pipes, fittings and accessories – Spigot series
Product coveredHubless Centrifugally Cast (Spun) Iron Pipes, Fittings and Accessories – Spigot Series
CategoryCentrifugally cast (Spun) iron pipes
SchemeISI mark licence (Scheme-I)
Notified underCentrifugally Cast (Spun) Iron Pipes (Quality Control) Order, 2021, S.O. No. 116 (E) · Order PDF

Editions and amendments of IS 15905

EditionPublishedStatus
IS 15905:2024
Hubless Centrifugally Cast (Spun) Iron Pipes, Fittings and Accessories Spigot Series Specification (First Revision)
19 Sept 2024Current, next review 30 Sept 2029
IS 15905:2011
Hubless centrifugally cast (Spun) iron pipes, fittings and accessories - Spigot series - Specification
31 Mar 2011Withdrawn 4 Apr 2025

No amendments to the current edition are listed by BIS.

Marking fee for IS 15905

BIS charges an annual minimum marking fee for the ISI mark under IS 15905, set by unit size, plus a per-unit rate once production passes the minimum:

Unit sizeMinimum marking fee (per year)
Large₹71,000
Medium₹57,000
Small₹35,500
Micro₹14,200

Unit rate: ₹9 per one tonne. Source: BIS marking fee schedule for Scheme-I products, September 2026.

Sampling and key tests for IS 15905

From the BIS product manual for IS 15905, which BIS officers and applicants follow for certification:

Tests BIS can carry out in a day during factory inspection:

  • All tests

The full type test covers every clause of IS 15905; the list above is what can be checked on site.

ISI licences under IS 15905

BIS records 7 operative licences (7 including deferred, cancelled or under stop marking). Most licensed factories are in Maharashtra (2), West Bengal (2), Uttar Pradesh (2), Rajasthan (1).

Testing against IS 15905

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 15905 that applies to the product, in the edition current on the date of testing. When BIS revises IS 15905 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 15905

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.

  1. Confirm the exact Indian Standard and the varieties to cover
  2. Get the product tested at a BIS-recognised lab (simplified procedure) or arrange BIS sampling
  3. Apply on Manak Online with factory, quality-control and test documents
  4. BIS factory inspection and sample verification
  5. 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 15905 cover?

IS 15905: 2011: Hubless centrifugally cast (Spun) iron pipes, fittings and accessories – Spigot series. BIS has made certification against it compulsory for hubless centrifugally cast (Spun) iron pipes, fittings and accessories – spigot series.

Is BIS certification under IS 15905 mandatory?

Yes, for hubless centrifugally cast (Spun) iron pipes, fittings and accessories – spigot series, under the Centrifugally Cast (Spun) Iron Pipes (Quality Control) Order, 2021, S.O. No. 116 (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 15905?

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 15905 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 Centrifugally cast (Spun) iron pipes

  • IS 1536 Centrifugally Cast (Spun) Iron Pressure Pipes for Water, Gas and Sewage
  • IS 3989 Centrifugally Cast (Spun) Iron Spigot and Socket Soil, Waste, Ventilating and Rainwater Pipes, Fittings and Accessories

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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