Textiles (such as clothing, furniture fabrics, bedding, etc.) may come into contact with fire sources (such as open flames, high-temperature electrical appliances, cigarettes, etc.) during daily use. Their combustion characteristics are directly related to fire risk and personal safety. Therefore, imparting flame-retardant properties to textiles is of great significance in eliminating fire hazards, preventing the spread of fire, and reducing loss of life and property.

1. Vertical burning method: Mainly used for flame retardancy testing of clothing textiles, curtains, and other fabrics. This testing method requires the test sample to be placed vertically (with the length direction of the test sample perpendicular to the horizontal line). The ignition source is located below the test sample to initiate combustion. Key indicators related to flame-retardant performance include the minimum ignition time, sustained burning time, smoldering time, flame spread rate, char length (damaged length), and char area (damaged area) of the test sample.

Common testing standards for the vertical burning method:

GB/T5455 Test method for flammability of textiles;  

GB/T8745 Determination of vertical damage length, flame retardancy, and sustained burning time of textiles;  

16CFR1615/1616 Flammability test for children's sleepwear.

2.45° Burning Method: This testing method specifies that the test sample is placed at a 45° angle (with the length of the test sample forming a 45° angle with the horizontal line), and measures the time required for the sample to burn upward over a certain distance, or measures post-flame burning time, smoldering time, flame spread rate, char length, char area, or the number of times the sample must come into contact with the flame to burn to a certain distance below the sample, among other indicators related to flame-retardant performance.

Common testing standards for the 45° burning method:

GB/T14644 Determination of burning rate in the 45° direction for textile burning performance;  

ASTM D1230 Standard test method for flammability of apparel textiles;  

16 CFR PART 1610 Flammability test standard for apparel textiles;  

CAN/CGSB-4.2 No. 27.5 Canadian textile 45° flame burning performance.

3. Horizontal Burning Method: Primarily used for testing the flammability performance of children's sleeping bags and blankets. This testing method involves exposing the sample surface to a standardized flame for a specified period of time, observing the burning rate, damage extent, or color change of the sample, and subsequently grading the tested fabric.

Common testing standards for the horizontal burning method:

CPAI75 Children's Sleeping Bag Flammability Test

ASTM F1955 Sleeping Bag Flammability Test Method

ASTM D4151 Blanket Flammability Test Method

Email: hello@utstesters.com

Direct: + 86 152 6060 5085

Tel: +86-596-7686689

Web: www.utstesters.com