IS 2347:2017 covers domestic pressure cookers, outlining specific requirements for their design and functionality. These pressure cookers should have a nominal capacity ranging from 1 to 22 liters, with capacities expressed solely in full or half-liter increments.

The materials used for all components of the cookers that come into contact with food or steam, such as the vessel, gasket, pressure regulating device, and internal accessories, must adhere to specified standards.

• These components must not cause food discoloration or alter the flavor or odor of the cooked food within the cooker.

• These components should not be damaged by contact with foods cooked in the cooker, ensuring that the cooker's performance and safety remain uncompromised.

Domestic Pressure Cookers are categorized according to IS 2347:2017 standards for GoL/CSoL classification.

The body, lid, containers, and grid of pressure cookers must be constructed from aluminum alloys or stainless steel, meeting specified standards. For wrought-iron cookers, the fusible plug's chemical composition should ensure it melts before a gauge pressure exceeding three kgf/cm2 is reached. Gaskets must adhere to IS 7466 guidelines.

The design of domestic pressure cookers should facilitate safe and effortless handling, optimal performance, and durability. The vessel should maintain its shape without distortion during regular use. Both the body and lid must be devoid of any surface imperfections like wrinkles, scratches, or blemishes.

TESTS

The subsequent test must be conducted for Domestic Pressure Cooker.

• Air Pressure Test

• Proof Pressure Test

• Operating Test for Pressure Regulating Device

• Test for Safety Pressure Relief Device

• Bursting Pressure Test

• Tests for Removal of Lid Under Pressure

• Test for Spring-Loaded Mechanism

Every set of pressure cookers within the same category should undergo comprehensive testing to cover the entire nominal capacity range of the group. Labeling and marking procedures should adhere to IS 2347:2017 standards. Each cooker must display its capacity on the body, while the manufacturer's name or recognized trademark should appear on both the lid and body. Corresponding markings should also be present on the carton. Optionally, the Standard Mark (ISI Mark) can be stamped on the body of each pressure cooker. Manufacturers must acquire a BIS license from the Bureau of Indian Standards to use the standard mark, which is granted after a thorough evaluation of manufacturing infrastructure, production processes, and quality control and testing capabilities conducted during a visit to the manufacturing premises.

PROCESS FOR BIS ISI MARK CERTIFICATION