IS 21 BIS Certification for Wrought Aluminium and Aluminium Alloys for Manufacture of Utensils

About IS 21

Editions and amendments of IS 21

No amendments to the current edition are listed by BIS.

Marking fee for IS 21

BIS charges an annual minimum marking fee for the ISI mark under IS 21, set by unit size, plus a per-unit rate once production passes the minimum:

Unit rate: ₹160 per tonne. Source: BIS marking fee schedule for Scheme-I products, September 2026.

Sampling and key tests for IS 21

From the BIS product manual for IS 21, which BIS officers and applicants follow for certification:

Sample quantity:1 pc of 500 mm length

ISI licences under IS 21

BIS records 21 operative licences (24 including deferred, cancelled or under stop marking). Most licensed factories are in Karnataka (4), Haryana (4), Odisha (3), Maharashtra (2), West Bengal (2).

Testing against IS 21

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 21 that applies to the product, in the edition current on the date of testing. When BIS revises IS 21 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 21

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 Aluminium and Aluminium Alloy Products

• IS 733 Wrought Aluminium and Aluminium Alloy Bars, Rods and Sections (For General Engineering Purposes)
• IS 734 Wrought Aluminium and Aluminium Alloys, Forging Stock and Forgings for General Engineering Purposes
• IS 736 Wrought Aluminium and Aluminium Alloy Plate for General Engineering Purposes
• IS 737 Wrought Aluminium and Aluminium Alloy Sheet and Strip for General Engineering Purposes
• IS 739 Wrought Aluminium and Aluminium Alloy Wire for General Engineering Purposes
• IS 740 Wrought Aluminium and Aluminium Alloy Rivet Stock for General Engineering Purposes
• IS 1254 Corrugated Aluminium Sheet
• IS 1285 Wrought Aluminium and Aluminium Alloys- Extruded Round Tube and Hollow Sections for General Engineering Purposes
• IS 2067 Wrought Aluminium Wire for Electrical Purposes
• IS 5082 Wrought Aluminium and Aluminium Alloy Bars, Rods, Tubes, Sections, Plates and Sheets for Electrical Applications

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.