This part of BS 5867 specifies flammability requirements for fabrics and fabric assemblies for use in the production of non-domestic curtains, drapes and window blinds and for finished articles including combinations of curtains and linings when tested by the methods specified in BS EN ISO 6941 and BS EN ISO 15025.

Fabrics are tested before any cleansing procedure, to assess them in the form in which they are most commonly used.

The procedures specified in BS EN ISO 10528, BS EN 1021‑1 and BS 5651 provide suitable methods of cleansing or wetting.

Where curtains or drapes are to be produced in a multi-layer fabric construction, it is essential to test the fabrics in the combination in which they are to be used.