CAN/CGSB-4.2 No. 27.7-2023

Scope This National Standard of Canada assesses the combustion resistance of mattresses when in contact with a lighted cigarette. This standard covers the resistance of mattresses to ignition only by a burning cigarette and does not relate to their resistance to any other source of ignition or fire conditions. The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This standard does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use. CGSB neither assumes nor accepts any responsibility for any injury or damage that may occur during or as the result of tests, wherever performed. Units of measurement – Quantities and dimensions used in this standard are provided in units from the International System of Units (SI units) with the exception of the gram-force (gf) used to define the performance characteristics of the durometer in section 6.2.