NFPA 260-1998 Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture

NFPA 260-1998 Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture. 3-1 Specimen Conditioning. All test upholstery fabrics and test materials, including cigarettes and sheeting material, shall be conditioned at a temperature of 21°C ± 2.8°C and a relative humidity of less than 65 percent for at least 4 hours prior to testing. If the test room does not meet these specifications for conditioning, the testing shall be initiated within 10 minutes after the specimens are removed from the conditioning room. 3-2 Cover Fabric Specimen. 3-2.1 Three 203 mm × 203 mm specimens shall be cut from the material to be tested for horizontal panels, and three 203 mm × 381 mm specimens shall be cut for vertical panels. 3-2.2 Each specimen shall have its long dimension cut in the direction of the warp and assembled for testing in a warp-to- warp orientation, such that the major areas of weave variation lie in the crevice of the assembled test apparatus. 3-2.3 For fabrics with complex weaves, specimens shall be cut such that portions of the three largest areas of weave complex- ity are contacted by the cigarettes placed on the test assem- blies. For dyed fabrics, printed fabrics, or both, color shall not constitute a variation relative to cigarette ignition resistance in this test. 3-3 Interior Fabric Specimen. Three 203 mm × 203 mm spec- imens shall be cut from the material to be tested. 3-4 Welt Cord Specimen. Three 203-mm specimens shall be cut from the welt cord to be tested. 3-5 Filling/Padding Component Specimen. 3-5.1 Three 203 mm × 127 mm × 51 mm specimens shall be cut for the horizontal panels, and three 203 mm × 203 mm × 51 mm specimens shall be cut for the vertical panels. 3-5.2* For loose or particulate materials (shredded polyure- thane, down, etc.), bags (sometimes referred to as “ticking”) used to contain the loose or particulate material shall be sewn as follows: Knife edge–type bags shall measure 254 mm × 254 mm inside seam to inside seam. The bags shall be made of the same material used to manufacture the upholstered furniture, and the loose or particulate material shall be the same as that used to manufacture the upholstered furniture. The bags, sewn on three sides, then shall be filled with 40 g ± 2 g of the loose or particulate material, and...