What is the purpose of this standard?

To provide a uniform method for determining the stability of storage units to prevent them from tipping over, ensuring user safety.

Does this test apply to wall-mounted units?

No, this standard is specifically for free-standing storage units (Clause 1).

What force is used to test stability with a door open?

A vertical downward force of 100 N is applied at the point on the edge of the door or flap furthest from the unit's pivot axis (Clause 6.2.2).

How is a unit 'loaded' for the test?

Each drawer and shelf is loaded with masses equivalent to 0.5 kg per cubic decimetre of its storage volume (Clause 6.3.1).

What is the pass/fail criterion?

The unit shall not overturn during any of the specified tests (Clause 6).

IS 13089

: 1991

Furniture - Storage units - Determination of stability

CurrentSpecializedTesting MethodGeneral · Furniture

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This standard specifies the test methods for determining the stability of all types of free-standing storage units for domestic and non-domestic use. It provides procedures for applying vertical and horizontal forces to simulate use, ensuring the furniture does not tip over when unloaded, loaded, or with doors and drawers open.

Furniture - Storage units - Determination of stability

Quick Reference Values

Test load density for shelves/drawers0.5 kg/dm³

Vertical force for testing stability with door open100 N

Horizontal force for testing unloaded unit stability20 N

Minimum outward pull on drawer for stability test50 N

Maximum vertical force for loaded unit stability test1000 N

Loading pad diameter100 mm

Key Formulas

Load (kg) = 0.5 * Storage Volume (dm³)

Practical Notes

The tests simulate worst-case scenarios, such as a child pulling on an open drawer or all doors being open at once.

Ensure the test surface is perfectly horizontal and rigid to get accurate results, as any slope can significantly affect stability.

This standard is crucial for manufacturers to ensure product safety and prevent accidents related to furniture tipping over.