The IS 13089:1991 standard outlines the procedures for assessing the stability of freestanding storage furniture like cabinets, cupboards, and bookshelves. It details testing protocols for fully assembled units to evaluate their tipping resistance under various load scenarios, ensuring user safety and product reliability. This standard is vital for manufacturers, testers, and safety auditors involved with storage furniture across residential, commercial, and institutional environments.
Overview
The IS 13089:1991 standard outlines the procedures for assessing the stability of freestanding storage furniture like cabinets, cupboards, and bookshelves. It details testing protocols for fully assembled units to evaluate their tipping resistance under various load scenarios, ensuring user safety and product reliability. This standard is vital for manufacturers, testers, and safety auditors involved with storage furniture across residential, commercial, and institutional environments.
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Frequently Asked
IS 13089:1991 applies specifically to freestanding storage furniture units including cupboards, cabinets, bookshelves, and similar items featuring doors, drawers, flaps, leaves, and shelves. The standard encompasses stability testing of these units both when unloaded and when subjected to loads on movable parts, ensuring they resist tipping during typical use scenarios.
Per IS 13089 Clause 3.1, vertical forces on doors and drawers are applied using a device capable of exerting a fixed or progressively increasing vertical load without hindering the movement of the components. This device may be a mass such as a steel plate, ensuring the force acts vertically downward while allowing free operation of the door or drawer throughout the test.
No, IS 13089 excludes wall-mounted or built-in storage furniture from its scope. The standard is intended solely for free-standing storage units that are fully assembled and ready for use. Stability tests and criteria outlined in IS 13089 focus on ensuring safety against tipping for independent furniture pieces.
Stability testing under IS 13089 requires placing the furniture on a level, rigid, and non-slip surface within controlled laboratory conditions (approximately 23°C temperature and 50% relative humidity). Equipment includes calibrated weights or load application devices, force gauges or load cells for accurate force measurement, measuring tools to assess displacement or tipping, and fixtures to secure the specimen if necessary. Loads are applied gradually at specified locations to simulate tipping forces and record critical force thresholds.
According to IS 13089:1991, test reports must document that the results pertain only to the tested specimen, which should represent the production model if generalizing findings. Although the standard does not prescribe a fixed format, reports typically include specimen identification (model, batch, dimensions), test conditions (environment, equipment), references to test procedures (IS 13089, ISO 7171), measured data, observations, and final conclusions regarding conformity or performance.
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