Information about BS 5852:Part 1:1979Fire test of upholstered composites for seating.
Fire tests for furniture – Part 1. Methods of test for the ignitability by smokers’ materials of upholstered composites for seating.
Why test according to this standard?
The standard is used to assess the ignitability of material combinations, such as covers and fillings used in upholstered seating, when subjected to a smouldering cigarette and a match flame equivalent as ignition source.
In United Kingdom all items of domestic upholstered furniture must meet the “Furniture and Furnishings (Fire) (Safety) Regulations 1988” with amendments.
Example of materials that can be tested according to this standard
Combinations of covering and filling materials that are used in upholstered furniture.
Covers/fabrics can also be tested in combination with standard fillings.
Complete test with 1 ignition source
Cover/interliner/wadding, 2 pieces with the dimensions 800 x 650 mm.
Filling, 2 pieces with the dimensions 450 x 300 x 75 mm.
Filling, 2 pieces with the dimensions 450 x 150 x 75 mm.
The thickness of 75 mm regards the filling together with any wadding.
If the filling differs between the seat, back, armrests, etc. all fillings must be tested seperately.
One piece each of the above stated material.
Testing according to the British furniture regulation
Amount of material as well as dimensions may differ depending on the schedule to be tested.
According to the British furniture regulation, all interliners and cover fabrics that have been treated with a flame retardant, shall go through a water soaking procedure before testing.
Short test description
The tests are performed in a test cabinet with a calibrated air flow. The cover fabric and the filling are put in a test rig to create a small sofa with a 90º angle between seat and back. The ignition sources are located in the junction between seat and back.
During the cigarette test the test assembly is not allowed to smoulder after one hour from the beginning of the test.
The test assembly is subjected to a gas flame equivalent to a match flame for 20 seconds. No flaming is allowed to continue for more than 120 seconds after removal of the burner tube.