GB5455 Textile Vertical Combustion Tester Test Requirements and Execution Standards

GB5455 Textile Vertical Burning Tester is an instrument used to test the vertical burning performance of textiles. When testing the flame retardant performance of safety nets, the entire testing process must strictly follow the requirements of GB5725. The specific testing requirements are as follows:

Implement the core requirements of the standard

The design principle and technical parameters of the instrument must comply with the provisions of GB5725, including key indicators such as flame height, ignition time, sample size, and relative position between the sample and igniter, to ensure the uniformity and comparability of test conditions.

The purpose of the experiment is to determine the combustion performance of textiles in a vertical state when exposed to fire, including flame combustion time, flameless combustion time, damage length, and combustion characteristics of droplets, providing a basis for evaluating flame retardancy. GB5455 Touch Screen Textile Vertical Combustion Tester (GB5725 Vertical Flame Retardant Performance Tester) The GB5455 Touch Screen Controlled Textile Vertical Combustion Tester, developed and produced by Beijing Xinsheng Zhuorui Technology Co., Ltd. and Xunyu Technology Co., Ltd., is an upgraded product based on the original equipment technology. It adopts touch screen control and has a high degree of automation in testing. In addition to the automation functions that rely on various buttons and tools, the touch screen control model can store past test data and retrieve it during testing. This device is suitable for various fabrics and their products such as safety nets, protective equipment, and seat belts, and is ultimately applicable to the test method for the combustion performance of vertical textile bottom edges when ignited as specified in the GB5455-2014 standard.

Design standard: GB5455-2014 "Determination of vertical release damage length, smoldering and reigning time of textile combustion performance"

Applicable standard: GB 8965.1-2009; GB6529 ； GB5725； GB/T 6096； GBT13489

Sample requirements

Sample size: sample length, width; For samples with a fabric width of less than 80mm, samples can be spliced together, but the joint must be flat and not affect the combustion performance.

Sample quantity: At least 5 samples should be taken for each test. If the textiles are of different colors and batches, separate samples should be taken for testing.

Sample pretreatment: before the test, the sample shall be placed in an environment with a temperature of 20 ℃± 2 ℃ and a relative humidity of * * 65% ± 5% * * to adjust the humidity for more than 24h. After the humidity adjustment, the test shall be conducted immediately to avoid environmental factors affecting the test results.

Test environment requirements

The laboratory temperature should be maintained at 20 ℃± 5 ℃, with a relative humidity of 65% ± 10%, without significant airflow interference, to prevent airflow from changing the flame shape and sample combustion rate.

Adequate operating space should be left around the equipment, and fire-fighting equipment should be equipped. During the testing process, unrelated personnel are prohibited from approaching.

Data accuracy requirements

The accuracy of the timing device needs to reach ± 0.1s to ensure accurate recording of flame burning and flameless burning time.

The accuracy of the measuring tool for measuring the damaged length should reach ± 1mm, and the reading should be based on the farthest end of the damaged edge of the sample.