TB 117-2013, the latest CAL-117 Tech Bulletin, is a flammability standard for upholstered furniture. It mandates that, beginning January 1, 2015, all filling materials (i.e. foam) in California must meet the smolder-resistant requirements of the TB 117-2013 Resilient Filling Material Test. These test methods are intended to estimate the performance of upholstered furniture under conditions of exposure to a smoldering cigarette and the flammability resistance of the inner materials.
All Via Seating product manufactured with Via Seating in-stock fabrics meet the requirements of California TB 117-2013.
COM fabrics are not guaranteed to pass TB 117-2013. Please contact the COM supplier directly to determine the flame-retardant nature of any COM supplied to Via Seating.
Technical Bulletin 133 is a test procedure designed to test seating furniture subjected to ignition sources that may be typical of arson, incendiary fires, or common accidental fires in public buildings. Unlike TB 117-2013, TB-133 tests the entire chair. TB 133 has been repealed by California’s Bureau of Electronic and Appliance Repair, Home Furnishings and Thermal Insulation, effective January 22, 2019.
A recent change to the Boston Fire Prevention Code removes the requirement for furniture to comply with California Technical Bulletin 133 (Cal TB 133) in a fully sprinklered buildings; however, if the
assembly space is not sprinkler protected, compliance with CAL TB-133 is still required in the City of Boston.
The chairs presented within this price book, unless otherwise specified, do not meet TB-133. Most Via Seating chair models can be prepared to meet the flame-retardant requirements of TB-133 and the Boston Fire Code. Via Seating does not add flame retardant chemicals to comply with TB-133, the fire resistance is accomplished by upholstering the chair with a naturally flame-retardant fabric barrier (i.e. Kevlar® or equivalent). Additionally, most plastic components (i.e. seat pan, back shell, shrouds, etc.) must be either removed or completely upholstered with a flame-retardant material.
Please note, any chair models specified to comply with TB-133 may not resemble what has been photographed and shown in marketing materials. Via Seating is not responsible for determining the requirement of TB-133 compliance. Check with your local building departments to determine if TB-133 is required on your order. To specify TB-133 on Via Seating chairs, please refer to the optional add on found by series’ pricing pages within this price book, when applicable. compliance. Check with your local building departments to determine if TB-133 is required on your order. To specify TB-133 on Via Seating chairs, please refer to the optional add on found by series’ pricing pages within this price book, when applicable.
Additional COM/COL is required for TB-133. Please send in COM/COL requirements for seat/back cushions and the back shell.