IS 4246:2002 encompasses guidelines for domestic gas stoves tailored for LPG usage. This standard addresses the construction, functioning, safety prerequisites, and testing procedures for household gas stoves featuring metallic bodies, intended for operation with liquefied petroleum gases at a gas inlet pressure of 2942 kN/m2 (30 gf/cm2).

The stove must adhere to the standard's design and construction specifications. All components of the appliance should facilitate easy cleaning and maintenance, ensuring optimal operational efficiency. Burner parts must remain securely connected during usage, and burner ports must be strategically positioned to prevent food spillage from obstructing normal operation. External surfaces should feature easily cleanable finishes. Additionally, the stove should not include an integrated pressure regulator.

The appliance should be designed for stability, preventing easy overturning. Pan supports must accommodate a 100 mm diameter pan over at least one top burner without additional rings, and ensure stability for a 125 mm diameter vessel over each burner. Testing conducted in accordance with specified methods outlined in the standard should confirm compliance of the domestic gas stove with standard requirements. Manufacturers are responsible for ensuring adherence to these standards. Additionally, a well-maintained laboratory is necessary for conducting various tests as per standard methodologies.

Each appliance should bear clearly visible and permanent markings containing the required information outlined in the standard. Gas stoves are also eligible for the Standard Mark (ISI Mark) application. The labeling and marking procedures should adhere to IS 4246: 2002 guidelines. Manufacturers are required to acquire a BIS license from the Bureau of Indian Standards in order to utilize the standard mark (ISI Mark). The BIS issues licenses following a thorough evaluation of manufacturing infrastructure, quality control measures, testing capacities, and production processes.

TESTS

The subsequent test must be conducted for Domestic Gas Stove.

1. Type Tests

• Strength test

• Gas consumption

• Flashback test for materials of burners

• Resistance to draught

• Combustion test

• Fire hazard and limiting temperature

• Floor, wall, ceiling, and surface temperature

• Thermal efficiency

2. Routine Tests

• Gas soundness

• Ignition and flame travel

• Flame stability

• Noise control

• Flashback

• Formation of soot

Each appliance should bear clear and permanent markings containing information as outlined in the standard. Adequate packaging is essential to prevent damage during transportation. Adherence to the stipulations of IS 15558:2005 enables certification under the Bureau of Indian Standards Act, 2016, and its associated regulations, allowing for the application of the Standard Mark (ISI Mark) on the product. Manufacturers are required to obtain a BIS license from the Bureau of Indian Standards to utilize the standard mark (ISI Mark), which is granted following a thorough evaluation of manufacturing infrastructure, quality control measures, testing capabilities, and production processes.

PROCESS FOR BIS ISI MARK CERTIFICATION