IS 1391 BIS Certification
2 products must be certified by BIS against IS 1391 and carry the ISI mark. Find your product and its exact part below.
Products under IS 1391
| Product | Part / edition | Scheme |
|---|---|---|
| Room Air Conditioners- Specification Part 1 Unitary Air Conditioners | IS 1391 (Part-1): 2017 | ISI mark |
| Room Air Conditioners- Specification Part 2 Split Air Conditioners | IS 1391 (Part-2): 2018 | ISI mark |
Parts of IS 1391 at a glance
| Part | Current edition | Amendments | Operative ISI licences | Min. marking fee (large unit) |
|---|---|---|---|---|
| IS 1391 (Part-1): 2017 Room Air Conditioners- Specification Part 1 Unitary Air Conditioners | IS 1391 (Part 1):2023 | 1 | 11 | ₹6,01,000 |
| IS 1391 (Part-2): 2018 Room Air Conditioners- Specification Part 2 Split Air Conditioners | IS 1391 (Part 2):2023 | 1 | 52 | ₹6,01,000 |
Details by part
IS 1391 (Part-1): 2017 Room Air Conditioners- Specification Part 1 Unitary Air Conditioners
Editions and amendments of IS 1391 (Part-1): 2017
| Edition | Published | Status |
|---|---|---|
| IS 1391 (Part 1):2023 Room Air Conditioners Specification Part 1 Unitary Air Conditioners Fourth Revision | 31 Aug 2023 | Current, next review 15 May 2031 |
| IS 1391 (Part 1):2017 Room air conditioners - Specification: Part 1 unitary air conditioners (Third Revision) | 31 Mar 2017 | Withdrawn 9 Dec 2025 |
| IS 1391 (Part 1):1992 Room Air Conditioners - Part 1 : Unitary Air Conditioners | Withdrawn 14 Mar 2022 |
Amendments:First Amendment (2026). Test reports must reflect the standard with its amendments.
Marking fee for IS 1391 (Part-1): 2017
BIS charges an annual minimum marking fee for the ISI mark under IS 1391 (Part-1): 2017, set by unit size, plus a per-unit rate once production passes the minimum:
| Unit size | Minimum marking fee (per year) |
|---|---|
| Large | ₹6,01,000 |
| Medium | ₹4,81,000 |
| Small | ₹3,00,500 |
| Micro | ₹1,20,200 |
Sampling and key tests for IS 1391 (Part-1): 2017
From the BIS product manual for IS 1391 (Part-1): 2017, which BIS officers and applicants follow for certification:
Sample quantity:One assembled air conditioner plus other suitable number of components
Raw material requirements:
- Pre-filter, if used- IS 17570 (Part 1)/ ISO 16890-1
- HEPA Filters, if used- IS 16753-1/ISO 29463-1
- Temperature Sensing Controls- as per Cl. 5.6
- Hermetic Compressors- IS 10617
- Heat Exchangers- IS 11329
- Motors- as per Cl. 5.9
Tests BIS can carry out in a day during factory inspection:
- General Running (Cl. 12.2.1)
- Leakage Test (Cl. 12.2.2)
- High Voltage Test (Cl. 12.2.3)
- Leakage Current Test (Cl. 12.2.4)
- Earth resistance (Cl. 12.2.5)
- Power factor Test (Cl. 9.3)
- Maximum Operating Conditions test (Cl. 9.4)
- Enclosure Sweat test (Cl. 9.6)
The full type test covers every clause of IS 1391 (Part-1): 2017; the list above is what can be checked on site.
ISI licences under IS 1391 (Part-1): 2017
BIS records 11 operative licences (11 including deferred, cancelled or under stop marking). Most licensed factories are in Rajasthan (4), Uttar Pradesh (3), Uttarakhand (2), Gujarat (1), Himachal Pradesh (1).
IS 1391 (Part-2): 2018 Room Air Conditioners- Specification Part 2 Split Air Conditioners
Editions and amendments of IS 1391 (Part-2): 2018
| Edition | Published | Status |
|---|---|---|
| IS 1391 (Part 2):2023 Room Air Conditioners Specification Part 2 Split Air Conditioners Fourth Revision Amendment - 1 | 31 Aug 2023 | Current, next review 15 May 2031 |
| IS 1391 (Part 2):2018 Room air conditioners - Specification: Part 2 split air conditioners (Third Revision) | 31 Jan 2018 | Withdrawn 9 Dec 2025 |
| IS 1391 (Part 2):1992 Room air conditioners: Part 2 Split air conditioners | Withdrawn 14 Mar 2022 |
Amendments:First Amendment (2026). Test reports must reflect the standard with its amendments.
Marking fee for IS 1391 (Part-2): 2018
BIS charges an annual minimum marking fee for the ISI mark under IS 1391 (Part-2): 2018, set by unit size, plus a per-unit rate once production passes the minimum:
| Unit size | Minimum marking fee (per year) |
|---|---|
| Large | ₹6,01,000 |
| Medium | ₹4,81,000 |
| Small | ₹3,00,500 |
| Micro | ₹1,20,200 |
Sampling and key tests for IS 1391 (Part-2): 2018
From the BIS product manual for IS 1391 (Part-2): 2018, which BIS officers and applicants follow for certification:
Raw material requirements:
- Pre-filter, if used- IS 17570 (Part 1)/ ISO 16890-1
- HEPA Filters, if used- IS 16753-1/ISO 29463-1
- Temperature Sensing Controls- as per Cl. 5.6
- Hermetic Compressors- IS 10617
- Heat Exchangers- IS 11329
- Motors- as per Cl. 5.9
Tests BIS can carry out in a day during factory inspection:
- Manufacturer of IDU only
- General Running Test (Cl. 12.2.1)
- Pressure Test or Leakage Test (Cl. 12.2.2)
- High Voltage Test (Cl. 12.2.3)
- Leakage Current Test (Cl.12.2.4)
- Earth Resistance Test (Cl. 12.2.5)
The full type test covers every clause of IS 1391 (Part-2): 2018; the list above is what can be checked on site.
ISI licences under IS 1391 (Part-2): 2018
BIS records 52 operative licences (54 including deferred, cancelled or under stop marking). Most licensed factories are in Maharashtra (12), Rajasthan (8), Andhra Pradesh (7), Uttar Pradesh (6), Uttarakhand (5).
Notifying orders
- Air Conditioner and its related Parts, Hermetic Compressor and Temperature Sensing Controls (Quality Control) Order, 2019, S.O. 4354(E), dated 05th December, 2019 · PDF
How to get an ISI mark licence under IS 1391
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
Is BIS certification mandatory for products under IS 1391?
Yes, for the 2 products listed on this page. Each is notified by a government order and needs a valid BIS licence (ISI mark) before it can be made, imported or sold in India. Other products that merely use IS 1391 are not automatically covered.
Which part of IS 1391 applies to my product?
IS 1391 has 2 parts or editions referenced in BIS orders. Find your product in the table above to see its exact part. Where a product is covered by more than one standard, all of them apply.
How long does ISI mark under IS 1391 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 Air Conditioner and its related Parts, Hermetic Compressor and Temperature Sensing Controls
- IS 8148 Ducted and Package Air Conditioners
- IS 10617 Hermetic Compressor Hermetic Compressors
- IS 11329 Finned Type Heat Exchanger for Room Air Conditioner
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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