IS 13585 BIS Certification for Shunt Power Capacitors of the Non-Self-Healing Type for AC System Having a Rated Voltage up to and Including 1000V Part-1 General Performance, Testing Amd Rating Safety Requirements Guide for Installation and Operation

About IS 13585

Editions and amendments of IS 13585

Amendments:First Amendment (2002). Test reports must reflect the standard with its amendments.

Marking fee for IS 13585

BIS charges an annual minimum marking fee for the ISI mark under IS 13585, set by unit size, plus a per-unit rate once production passes the minimum:

Unit rate: ₹0.9 per kvar. Source: BIS marking fee schedule for Scheme-I products, September 2026.

Sampling and key tests for IS 13585

From the BIS product manual for IS 13585, which BIS officers and applicants follow for certification:

Sample quantity:1 Capacitor + 2 dummy capacitors

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

• Capacitance Measurement and output calculation
• Measurement of the tangent of the loss angle(tan ð) of the capacitor
• Voltage tests between terminals
• Voltage tests between terminals and container
• Test of the Internal Discharge Device
• Sealing test

The full type test covers every clause of IS 13585; the list above is what can be checked on site.

ISI licences under IS 13585

BIS records 11 operative licences (11 including deferred, cancelled or under stop marking). Most licensed factories are in Maharashtra (8), Daman & Diu (1), Tamil Nadu (1), Madhya Pradesh (1).

Testing against IS 13585

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 13585 that applies to the product, in the edition current on the date of testing. When BIS revises IS 13585 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 13585

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

Other standards in Capacitors

• IS 2993 A.C. Motor Capacitors
• IS 13340 Power Capacitors of Self-healing Type for AC Power Systems Having Rated Voltage up to 650V

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.