BIS Certification for Domestic Gas Stoves for Use with Liquefied Petroleum Gas (LPG) – IS 4246:2025

BIS Certification for Domestic Gas Stoves for Use with Liquefied Petroleum Gas (LPG) – IS 4246:2025

BIS Certification for Domestic Gas Stoves for Use with Liquefied Petroleum Gas (LPG) – IS 4246:2025

Domestic LPG gas stoves are among the most widely used cooking appliances in Indian households. Their safety, thermal efficiency, flame stability and reliable operation are essential for protecting consumers and ensuring efficient use of liquefied petroleum gas.

To ensure product quality and consumer safety, the Government of India has made BIS certification compulsory for domestic gas stoves intended for use with LPG.

The product was previously covered under IS 4246:2002 – Domestic Gas Stoves for Use with Liquefied Petroleum Gases. However, BIS revised the standard in 2025.

The current applicable Indian Standard is:

IS 4246:2025 – Domestic Gas Stove and Built In Hob for Use With LPG

The revised standard introduces updated requirements for domestic gas stoves and built-in hobs, including construction, thermal shock resistance, pan support, gas inlet connections and performance testing.

Manufacturers supplying covered LPG gas stoves in India must obtain the applicable BIS licence under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018.

This article explains the mandatory certification requirements, revised standard, product classification, testing, sampling, laboratory requirements, documents and BIS certification procedure.

1. Is BIS Certification Mandatory for Domestic LPG Gas Stoves?

Yes. BIS certification is mandatory for domestic gas stoves covered under the applicable Quality Control Order.

The Government of India notified the Domestic Gas Stoves for Use with Liquefied Petroleum Gases (Quality Control) Order, 2019, through S.O. 4345(E), dated 3 December 2019.

The Order came into force on 1 June 2020.

It requires covered domestic LPG gas stoves to conform to the applicable Indian Standard and bear the BIS Standard Mark under a licence issued by BIS.

The Order excludes goods or articles meant for export, as provided in the notification.

Important Revision: IS 4246:2002 to IS 4246:2025

BIS issued implementation guidelines on 8 August 2025 for the revised standard.

The implementation deadline was 17 December 2025.

BIS directed that:

• Existing licensees must implement IS 4246:2025 by the deadline.
• Licences must not continue operating under the old standard after the implementation deadline.
• Applications processed after the deadline must consider the revised standard.
• New licences must not be granted under the old standard after 17 December 2025.

Therefore, manufacturers applying for BIS certification in 2026 should prepare their products and documentation according to IS 4246:2025.

2. Applicable Indian Standard and BIS Product Manual

Particular	Details
Product	Domestic LPG Gas Stoves and Built-in Hobs
Previous Indian Standard	IS 4246:2002
Current Indian Standard	IS 4246:2025
Current standard title	Domestic Gas Stove and Built In Hob for Use With LPG
Certification scheme	BIS Scheme-I (ISI Mark Scheme)
Certification authority	Bureau of Indian Standards
Applicable QCO	Domestic Gas Stoves for Use with Liquefied Petroleum Gases (Quality Control) Order, 2019
Original QCO implementation	1 June 2020
Revised standard implementation deadline	17 December 2025

Current BIS Product Manual

BIS has issued the revised product manual:

PM/IS 4246/5/August 2025

This manual replaces the earlier product manual arrangements for IS 4246:2002.

The revised manual includes updates to:

• Scheme of Inspection and Testing
• Licence scope
• Applicable product requirements
• Certification arrangements

Manufacturers should use the August 2025 product manual and the latest amendments or subsequent revisions, if any, when preparing their application.

3. Types of Domestic Gas Stoves Covered

The standard covers domestic cooking appliances intended for use with LPG, subject to the detailed scope of IS 4246:2025.

A. Metallic Body LPG Gas Stoves

These are conventional domestic LPG gas stoves manufactured with metallic bodies.

Common market configurations include:

• Single-burner gas stoves
• Two-burner gas stoves
• Three-burner gas stoves
• Four-burner gas stoves

B. Glass Top LPG Gas Stoves

These gas stoves use a glass cooking surface supported by the relevant frame and construction.

The revised standard expands the scope to include metallic or plastic frames with glass tops.

C. Built-in LPG Hobs

Built-in hobs are cooking appliances designed for installation within a kitchen countertop or other suitable supporting structure.

IS 4246:2025 specifically incorporates requirements and test methods for built-in hobs.

The manufacturer must ensure that each product variety proposed for certification falls within the applicable scope of the revised standard.

4. Major Changes Introduced in IS 4246:2025

BIS issued implementation guidelines identifying the significant changes introduced through the revision.

Requirement	Major change
Scope	Expanded to cover metallic or plastic frames with glass tops
Built-in hobs	Specific provisions incorporated
Bati stand	Providing a bati stand with the gas stove or hob is no longer compulsory
Thermal shock test	Test method modified
Pan support	New stability requirements introduced
Gas inlet connections	New requirements for material, position and threads
Gas consumption test	Correction factor introduced

A. Inclusion of Built-in Hobs

The revised standard includes built-in hobs and introduces applicable test requirements for these products.

This is particularly relevant for manufacturers of modern modular kitchen appliances.

B. Revised Thermal Shock Requirements

The thermal shock test method has been modified.

Manufacturers of glass-top gas stoves and built-in hobs should verify that their glass components meet the revised requirements.

C. Pan Support Stability

The revised standard introduces a requirement that the pan support assembly remain stable when used with flat vessels having diameters from 150 mm to 250 mm.

D. Gas Inlet Connections

New requirements have been introduced relating to the material, position and threads of gas inlet connections.

E. Gas Consumption Test

A correction factor has been introduced in the gas consumption test.

Manufacturers must follow the revised method when assessing product performance.

5. Technical Requirements for Domestic LPG Gas Stoves

IS 4246 establishes construction, operational, performance and safety requirements for domestic LPG gas stoves.

The principal technical requirements include:

A. Materials and Components

The stove must be manufactured using suitable materials and components conforming to the applicable requirements.

Important components include:

• Stove body and frame
• Burners
• Pan supports
• Gas taps
• Injector jets
• Gas inlet connections
• Fasteners
• Glass or ceramic cooking surfaces, where applicable

B. Construction and Workmanship

The stove must be designed and manufactured to ensure:

• Adequate rigidity
• Stability during operation
• Proper assembly
• Suitable workmanship and finish
• Safe positioning of burners
• Proper gas flow and connections
• Safe operation during domestic cooking

C. Thermal Efficiency

Thermal efficiency is an important performance characteristic.

The earlier IS 4246:2002 requirements specified a minimum thermal efficiency of 68%.

Manufacturers must confirm the applicable thermal efficiency requirement and test method under IS 4246:2025 rather than relying solely on the earlier edition.

D. Flame Stability

The burners must operate safely under the specified conditions without unacceptable flame instability.

E. Resistance to Draught

The stove must demonstrate suitable flame performance when exposed to the specified draught conditions.

F. Flashback

The stove must satisfy the applicable flashback requirements.

G. Soot Formation

The appliance must meet the requirements relating to soot formation during operation.

H. Gas Consumption

Gas consumption must be determined according to the applicable test method.

IS 4246:2025 introduces a correction factor in this test.

I. Fire Hazard and Limiting Temperatures

The stove must satisfy the applicable requirements relating to fire hazards and temperature rise during operation.

J. Glass Surface Safety

For glass-top stoves and relevant built-in hobs, the applicable glass-related requirements must be satisfied, including the revised thermal shock provisions.

6. Testing Requirements for BIS Certification

Testing is a critical stage of BIS certification for domestic LPG gas stoves.

The following table summarises the principal areas of testing associated with IS 4246.

Sr. No.	Test parameter	Purpose
1	Construction and workmanship	Verify product construction and finish
2	Rigidity and stability	Evaluate structural stability
3	Gas tightness / leakage	Assess gas connections and leakage performance
4	Gas consumption	Determine fuel consumption
5	Thermal efficiency	Evaluate cooking efficiency
6	Combustion performance	Assess burner combustion
7	Flame stability	Verify stable burner operation
8	Resistance to draught	Evaluate flame behaviour under draught conditions
9	Flashback	Assess flashback resistance
10	Soot formation	Evaluate soot formation during operation
11	Fire hazard and limiting temperatures	Assess relevant thermal safety requirements
12	Thermal shock	Assess applicable glass or ceramic surfaces
13	Pan support stability	Verify stability under the revised requirements
14	Gas inlet connection	Verify applicable construction and connection requirements
15	Marking and instructions	Verify required product information

The exact test programme, clause references and acceptance criteria must be taken from IS 4246:2025 and its applicable product manual.

Not every test necessarily applies to every construction or product configuration.

7. Sample Quantity Required for BIS Testing

Under the earlier BIS Product Manual PM/IS 4246/2/May 2019 for IS 4246:2002, the specified sample quantity was:

One complete gas stove.

The earlier manual also required each type of domestic gas stove to be tested for grant or change in scope of licence.

However, BIS revised the product manual in August 2025.

For applications under IS 4246:2025, manufacturers should verify the sample quantity and grouping requirements in PM/IS 4246/5/August 2025.

The earlier one-stove requirement should not automatically be treated as the current sampling rule for every stove or built-in hob configuration.

8. Product Grouping Guidelines

Product grouping determines which models must be tested and which varieties may be covered under a BIS licence.

For domestic LPG gas stoves, relevant considerations may include:

• Product type
• Number of burners
• Metallic or glass-top construction
• Frame material
• Burner design
• Built-in or freestanding configuration
• Manufacturing and testing capabilities

Historical Grouping Under IS 4246:2002

The earlier BIS product manual required each type of domestic gas stove to be tested for grant of licence or change in scope.

Grouping Under IS 4246:2025

The revised standard includes built-in hobs and additional construction types.

Therefore, manufacturers should assess the proposed model range according to the current product manual and licence-scope provisions.

Example

A manufacturer producing the following products should prepare a model-wise scope assessment:

Model	Product type	Burners
Model A	Metallic body gas stove	2
Model B	Glass-top gas stove	3
Model C	Glass-top gas stove	4
Model D	Built-in LPG hob	4

The number of samples required for these models must be determined according to the current BIS grouping guidelines.

A model-wise grouping assessment before application can help avoid unnecessary testing and licence-scope issues.

9. Factory Laboratory and Testing Facilities

Manufacturers must establish suitable testing and quality-control arrangements for domestic LPG gas stoves.

The required facilities depend on the applicable tests and the manufacturer’s product range.

Indicative Testing Equipment

Equipment / facility	Purpose
Gas pressure measuring equipment	Pressure measurement
Gas flow measuring equipment	Gas consumption
Thermometers / temperature sensors	Temperature measurements
Weighing balance	Mass measurement
Dimensional measuring instruments	Construction and dimensional checks
Stopwatch	Time-based measurements
Thermal efficiency test arrangement	Thermal efficiency testing
Flame stability test arrangement	Burner performance
Gas leakage test arrangement	Gas tightness assessment
Thermal shock test arrangement	Glass or ceramic surface assessment
Stability test arrangement	Stove and pan support stability
Draught test arrangement	Resistance to draught

This is an indicative planning list, not a substitute for the test equipment schedule in the current BIS product manual.

Laboratory Readiness

The manufacturer should ensure that:

• Applicable testing equipment is available.
• Calibration certificates are maintained.
• Test procedures are documented.
• Trained personnel are available.
• Test records are maintained.
• Non-conforming products are identified and controlled.

Whether a particular test may be subcontracted must be confirmed from the current product manual and applicable BIS instructions.

10. Scheme of Inspection and Testing (SIT)

The manufacturer must implement the Scheme of Inspection and Testing applicable to IS 4246:2025.

The SIT establishes the production inspection and testing arrangements required to ensure consistent product conformity.

Important Quality-Control Activities

Incoming Material Inspection

The manufacturer should verify the quality and conformity of relevant materials and components.

In-process Inspection

Inspection should be carried out during burner assembly, gas tap fitting, body assembly and other manufacturing stages.

Finished Product Inspection

Completed stoves should be checked for applicable construction, workmanship, safety and performance requirements.

Routine Testing

Routine tests must be carried out at the frequency specified in the current SIT.

Calibration

Testing and measuring equipment must be calibrated according to the applicable calibration plan.

Test Records

The manufacturer must maintain appropriate records demonstrating conformity of the production covered by the BIS licence.

Non-Conforming Products

A documented procedure should be established for identifying, segregating and controlling products that do not meet the standard.

The actual control units, sample quantities and test frequencies must be taken from the current SIT.

11. BIS Marking Requirements for LPG Gas Stoves

After obtaining the BIS licence, the manufacturer must mark conforming products in accordance with the applicable Indian Standard and BIS licence conditions.

The marking arrangements generally involve:

• BIS Standard Mark
• BIS licence number (CM/L number)
• Manufacturer identification
• Product identification
• Relevant operating information
• Applicable safety instructions
• Other information required by the standard

Manufacturers must ensure that the Standard Mark is applied only to products covered by the valid licence and conforming to the applicable requirements.

Installation and User Instructions

The manufacturer should provide installation, operation and safety instructions as required by the current standard.

These may include guidance relating to:

• Correct installation
• Suitable LPG connection
• Safe operation
• Cleaning and maintenance
• Appropriate cooking vessels
• Precautions against gas leakage
• Safe handling of the appliance

The exact marking and instruction requirements must be verified against IS 4246:2025.

12. Documents Required for BIS Certification

Manufacturers should prepare the following documents before submitting the BIS application.

A. Company and Legal Documents

• Certificate of Incorporation or business registration
• PAN card
• GST registration certificate
• Factory address proof
• Authorised signatory details
• Authorisation letter or board resolution, wherever applicable
• Company profile

B. Manufacturing Documents

• Manufacturing process flow chart
• Detailed manufacturing process description
• Factory layout plan
• List of manufacturing machinery
• Production capacity details
• Product model list
• Stove construction drawings
• Burner specifications
• Gas tap and injector details
• Gas inlet connection details
• Glass-top or built-in hob construction details, where applicable

C. Raw Material Documents

• Raw material specifications
• Supplier test certificates
• Material purchase records
• Component specifications
• Burner material details
• Gas tap specifications
• Injector jet specifications
• Glass specifications, where applicable
• Incoming inspection records

D. Quality Control Documents

• Quality Control Manual
• Scheme of Inspection and Testing
• List of testing equipment
• Equipment calibration certificates
• In-house laboratory details
• Test formats and records
• Thermal efficiency test records
• Gas consumption test records
• Flame stability test records
• Gas leakage test records
• Product inspection records
• Non-conforming product control procedure

E. BIS Application Documents

• BIS application form
• Product scope and model details
• Manufacturing unit information
• Applicable declarations and undertakings
• Required supporting documents
• Applicable fee payment details

The final documentation depends on the product type, manufacturing arrangements and current BIS requirements.

13. BIS Certification Cost for Domestic LPG Gas Stoves

The total cost of BIS certification depends on several factors.

These include:

• Number of product types and models
• Sample testing requirements
• Testing laboratory
• Factory location
• Laboratory readiness
• Product modifications, if required
• Applicable BIS fees

Major Cost Components

Cost component	Description
BIS application fee	Prescribed fee for submitting the application
Factory inspection charges	Applicable inspection expenses
Laboratory testing charges	Product testing against IS 4246:2025
Licence and marking fees	Applicable BIS licence-related charges
Sample transportation	Dispatch of samples to the testing laboratory
Laboratory infrastructure	Testing equipment and calibration, if required
Consultancy charges	Professional support, if engaged

Testing charges should be obtained from the selected laboratory for the applicable IS 4246:2025 test scope.

A fixed testing fee should not be assumed without a current laboratory quotation.

14. BIS Certification Timeline

The time required to obtain BIS certification depends on:

• Completeness of the application
• Factory readiness
• Availability of testing facilities
• Sample testing time
• Factory inspection scheduling
• Product conformity
• Closure of BIS observations
• Completion of certification formalities

A manufacturer with complete documentation, suitable testing facilities and conforming products may experience fewer delays.

However, the actual completion period cannot be guaranteed because it depends on BIS processing and laboratory availability.

15. Step-by-Step BIS Certification Process

Step 1 – Product Applicability Assessment

Confirm the applicability of IS 4246:2025 and the Domestic Gas Stoves Quality Control Order.

Step 2 – Product Classification

Identify the gas stove or built-in hob configurations proposed for certification.

Step 3 – Model and Grouping Assessment

Prepare the model-wise product list and determine the applicable sampling requirements.

Step 4 – Factory Infrastructure Assessment

Review manufacturing machinery, testing facilities and quality-control arrangements.

Step 5 – Documentation Preparation

Prepare company, manufacturing, technical and quality-control documentation.

Step 6 – BIS Application Submission

Submit the application through the applicable BIS online certification process with supporting documents and prescribed fees.

Step 7 – Factory Inspection

BIS assesses the manufacturing premises, testing arrangements, production process and quality-control system.

Step 8 – Sample Testing

Samples are selected and tested according to the applicable product manual and Indian Standard.

Step 9 – Compliance and Clarifications

The manufacturer addresses any observations, non-conformities or additional requirements.

Step 10 – Grant of BIS Licence

After satisfactory completion of the applicable requirements, BIS may grant the licence to use the Standard Mark for the approved product scope.

16. Common Challenges in BIS Certification

1. Using the Old Standard

Manufacturers may still refer to IS 4246:2002 without considering the revised IS 4246:2025 requirements.

2. Incorrect Product Grouping

Different burner configurations, body constructions and built-in hobs may require separate evaluation.

3. Thermal Efficiency Failure

Poor burner design, gas flow control or combustion characteristics may affect thermal efficiency.

4. Flame Stability Issues

Improper burner design or gas pressure arrangements may lead to flame instability.

5. Gas Leakage

Poor assembly, unsuitable fittings or defective connections may lead to leakage during testing.

6. Glass Thermal Shock Failure

Glass-top models must satisfy the applicable revised thermal shock requirements.

7. Inadequate Testing Facilities

Manufacturers may not have suitable equipment for the applicable performance and safety tests.

8. Incomplete Documentation

Missing drawings, component specifications, calibration certificates and test records may delay certification.

A detailed technical gap assessment can help identify these issues before the BIS application is submitted.

17. How Qualitance India Can Help

Qualitance India provides professional BIS certification and regulatory compliance consultancy services to manufacturers seeking BIS licences in India.

For domestic LPG gas stoves and built-in hobs, our support can include:

• BIS certification applicability assessment
• Review of IS 4246:2025 requirements
• Gap assessment against the revised standard
• Product classification and grouping
• Model-wise scope assessment
• Factory infrastructure review
• Laboratory and testing equipment assessment
• Preparation of Quality Control Manual
• Preparation of Scheme of Inspection and Testing
• Guidance on calibration arrangements
• Sample testing coordination
• BIS application documentation
• Assistance during BIS factory inspection
• Support in responding to BIS observations
• Guidance through the BIS licence grant process

Our objective is to help manufacturers understand the applicable requirements and establish the necessary quality-control arrangements for BIS certification.

Qualitance India – Improving Quality & Competence

Website: https://qualitanceindia.com
Email: info@qualitanceindia.com
Contact: +91 93106 15170

18. Frequently Asked Questions (FAQs)

Q1. Is BIS certification mandatory for domestic LPG gas stoves in India?

Yes. Domestic LPG gas stoves covered under the applicable Quality Control Order must conform to the relevant Indian Standard and bear the BIS Standard Mark under a valid licence.

Q2. Which Indian Standard applies to domestic LPG gas stoves?

The current standard is IS 4246:2025 – Domestic Gas Stove and Built In Hob for Use With LPG.

Q3. Is IS 4246:2002 still valid for new BIS certification applications?

IS 4246:2002 has been revised to IS 4246:2025. BIS set 17 December 2025 as the implementation deadline. New applications must be assessed against the revised standard.

Q4. Does IS 4246:2025 cover built-in LPG hobs?

Yes. The revised standard incorporates provisions for built-in hobs.

Q5. What is the sample quantity required for BIS testing?

The earlier IS 4246:2002 product manual specified one complete gas stove. For certification under IS 4246:2025, the current sample requirements must be confirmed from the revised product manual.

Q6. Are glass-top gas stoves covered under IS 4246:2025?

Yes. The revised standard includes provisions for glass-top constructions, including metallic or plastic frames with glass tops.

Q7. What are the major tests required for domestic LPG gas stoves?

The major testing areas include construction, stability, thermal efficiency, gas consumption, flame stability, resistance to draught, flashback, soot formation, gas leakage and applicable thermal safety requirements.

Q8. Is a BIS licence required for two-burner and three-burner gas stoves?

Covered domestic LPG gas stoves require BIS certification. The number of burners and other construction details must be considered when determining the approved licence scope and applicable testing requirements.

Q9. Can a manufacturer sell LPG gas stoves without an ISI Mark?

Covered products subject to compulsory certification must comply with the applicable QCO and BIS marking requirements. Selling non-compliant covered products may attract action under the BIS Act, 2016.

Q10. What is the BIS testing cost for domestic LPG gas stoves?

Testing costs depend on the product type, test scope and selected laboratory. Manufacturers should obtain a current quotation for IS 4246:2025.

Q11. Can foreign manufacturers obtain BIS certification for LPG gas stoves?

Foreign manufacturers may apply through the applicable BIS Foreign Manufacturers Certification Scheme (FMCS), subject to the relevant eligibility and certification requirements.

Q12. Who can assist with BIS certification for domestic LPG gas stoves?

Qualitance India can assist manufacturers with applicability assessment, documentation, factory readiness, product grouping, laboratory arrangements and BIS certification coordination.

Conclusion

BIS certification for domestic LPG gas stoves is a mandatory regulatory requirement for covered products supplied in India.

With the revision of IS 4246:2002 to IS 4246:2025, manufacturers must ensure that their gas stoves and built-in hobs meet the updated construction, safety, performance and testing requirements.

Proper product classification, factory readiness, laboratory arrangements, documentation and quality-control systems are essential for managing the certification process.

For professional assistance with BIS Certification for Domestic LPG Gas Stoves and Built-in Hobs, contact Qualitance India.

Qualitance India – Improving Quality & Competence

Website: https://qualitanceindia.com
Email: info@qualitanceindia.com
Phone: +91 93106 15170

 

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