CAN/CGSB 4.2 NO. 12.1-M90 (R2004) Historical

This method determines the tearing strength of woven fabrics by the single-rip procedure. The single-rip method is frequently referred to on the North American continent as the "tongue" method, a term that in Great Britain signifies procedures involving a double rip.

This method may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this method has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.