Carpet Flammability Tester

The Carpet Flammability Tester is designed to assess the flame-retardant properties of textile floor coverings, including carpets and rugs. It provides precise, repeatable testing under controlled ignition conditions, ensuring compliance with international and national standards for carpet fire safety.The test chamber is manufactured from non-combustible heat resistant board with a counter weighted sliding panel for easy access. The mirror on top of the chamber allows the operator to view the specimens during the test.

Standards

BS 4790: Hot Metal Nut Method for Floor Covering Fabrics

ISO 6925: Ambient Temperature Tablet Test for Floor Coverings

BS 6307: Fire Test for Textile Floor Materials (Carpets/Rugs)

GB/T 11785: Flame Retardancy of Textile Floor Coverings

Applications

The Flammability Tester is used to test the effects of a small source of ignition on floor coverings. It can be used for either the hot metal nut test (BS 4790) or the methenamine tablet test (ISO 6925 and BS 6307).

Technical Parameters

Features

1. Complete with measuring grid and clamping ring;

2. Sliding panel for easy access;

3. Angled mirror for viewing;

4. Applicable to 2 different tests, enclosed unit for optimum;

5. Safety.

Test Method

The stainless steel nut is heated to a temperature of 900°C in a muffle furnace. The specimen is placed inside the test chamber and the clamping rig is placed onto the sample using crucible tongs supplied. The heated nut is placed in the centre of the clamping rig. After 30 seconds the nuts removed and the effects of the ignition allowed to subside. Measurements are then made to assess the spread of the ignition on the sample. It is recommended that the test chamber is placed in a laboratory fume hood. The conditioned specimens are placed on the removable base inside the test chamber and the metal plate with a circular cut-out is placed on the sample. The tablet is placed at the centre of the specimen and ignited. After the flame has extinguished, measurements are taken to assess the effects.

Consumables

Test Chamber(includes furnace)

Accessories for Hot Nut Test

Accessories for Methanamine Tablet Test

M16 Nut for Hot Nut Test

Methylamine Tablets for Methylamine Tablets Test

FAQ

(1) What is this product?

A testing instrument for evaluating flame retardancy of carpets and textile floor coverings.

(2) What is this product used for?

To measure flame spread, afterflame, and burning behavior of carpets under controlled ignition conditions.

(3) What is the working principle of this product?

Samples are exposed to a controlled ignition source (hot metal nut or polymer sheet), and flame propagation is observed and timed.

(4) Why is this product important?

It ensures carpets meet fire safety standards, minimizing hazards in residential, commercial, and public spaces.

(5) Which industries is this product suitable for?

Carpet manufacturing, quality inspection, fire research laboratories, construction, and hospitality sectors.