CAN/CGSB-4.2 NO.27.5 Textile Test Methods–45°Angel Test–One-Second Flame Impingement

CAN/CGSB-4.2 NO.27.5 Textile Test Methods–45°Angel Test–One-Second Flame Impingement

  1. PURPOSE AND SCOPE
  • This  method determine the flame spread properties of a textile or product when a specimen is supported at an angle of 45°and a flame is applied to its upper surface for 1 s.
  • The testing and evaluation of a product against 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 applicable regulatory requirements prior to use.

  1. PRINCIPLE

Specimens cut from the textile are mounted in specimen holders, dried under specified conditions,cooled in a desiccator,and supported in the testing apparatus at an angle of 45°. A Standardized flame is applied to the surface near the lower end for 1 s.The total time required for the specimen to ignite and flaming to proceed up the fabric a distance of 127mm is recorded as the flame spread time. Fabrics having a raised-fibre surface are brushed before the test,and any ignition or fusing of the base of such fabrics noted.

  1. REFERENCED PUBLICTIONS
  • The following publications are referenced in this method:
  • Canadian General Standards Board( CGSB)

CAN/CGSB  4.2– Textile Test Methods: NO.1—Precision and Accuracy of Measurements

NO.30.3 — Procedure for the Removal of Non-Permanent Flame-Retardant Treatments from Textile products.

A dated reference in this method is to the issue specified. An undated reference in this method is to the latest issue, unless otherwise specified by the authority applying this method. The sources are given in the Notes section.

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