IS 13095 BIS Certification for Butterfly Valves for General Purpose
Butterfly Valves for General Purpose made, imported or sold in India must be certified against IS 13095 under an ISI mark licence (Scheme-I). What the standard covers, how testing works and how to get the licence.
About IS 13095
| Standard | IS 13095:1991 |
|---|---|
| Title | Butterfly valves for general purpose |
| Product covered | Butterfly Valves for General Purpose |
| Category | Butterfly Valves |
| Scheme | ISI mark licence (Scheme-I) |
| Notified under | Butterfly valves (Quality Control) Order, 2020., S.O. 1920 (E), dated 17 June, 2020 · Order PDF |
Editions and amendments of IS 13095
| Edition | Published | Status |
|---|---|---|
| IS 13095:2020 Butterfly Valves for General Purposes ( First Revision ) | 30 Nov 2020 | Current, next review 22 Jan 2031 |
| IS 13095:1991 Butterfly Valves for General Purposes ( First Revision ) | Withdrawn 20 May 2024 |
Amendments:First Amendment (2021), Second Amendment (2025), Third Amendment (2026). Test reports must reflect the standard with its amendments.
Marking fee for IS 13095
BIS charges an annual minimum marking fee for the ISI mark under IS 13095, set by unit size, plus a per-unit rate once production passes the minimum:
| Unit size | Minimum marking fee (per year) |
|---|---|
| Large | ₹52,000 |
| Medium | ₹42,000 |
| Small | ₹26,000 |
| Micro | ₹10,400 |
Unit rate: ₹3.5 per piece. Source: BIS marking fee schedule for Scheme-I products, September 2026.
Sampling and key tests for IS 13095
From the BIS product manual for IS 13095, which BIS officers and applicants follow for certification:
Sample quantity:One Valve
Tests BIS can carry out in a day during factory inspection:
- All tests
The full type test covers every clause of IS 13095; the list above is what can be checked on site.
ISI licences under IS 13095
BIS records 114 operative licences (120 including deferred, cancelled or under stop marking). Most licensed factories are in Punjab (52), Gujarat (23), West Bengal (23), Maharashtra (7), Tamil Nadu (3).
Testing against IS 13095
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 13095 that applies to the product, in the edition current on the date of testing. When BIS revises IS 13095 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 13095
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 13095 cover?
IS 13095:1991: Butterfly valves for general purpose. BIS has made certification against it compulsory for butterfly valves for general purpose.
Is BIS certification under IS 13095 mandatory?
Yes, for butterfly valves for general purpose, under the Butterfly valves (Quality Control) Order, 2020., S.O. 1920 (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 13095?
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 13095 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.
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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