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Introduction to 45 degree combustion tester parameters
1. Introduction to the 45-degree combustion testing-equipment' target='_blank'>tester: Instrument name: 45-degree combustion tester Brand: Gellowen Place of origin: UK Test standards: ASTM D1230, FTMS 191-5908, CFR 16 Part1610, CAL IF TB117, NFPA702, GB/T 14644 (to ASTM D1230 is an example to introduce the principle and test of the instrument) Chinese agent: Company address: No. 2578, Gudai Road, Minhang District, Shanghai. Company Tel: 13671743966 Company Fax: 021-64208466-8101. 2. Test range: According to the standard ASTM D1230, this The test instrument can be used to judge the burning characteristics of clothing or fabrics (except baby pajamas and protective clothing), and to evaluate the burning rate of the sample according to the flame spread time. 3. Test process and rating: Sample preparation: Prepare 5 50*150mm samples. Before the test, a pre-test can be carried out to determine the fastest burning direction of the fabric and make it along the long side of the fabric. (That is, the fabric burns fastest in the direction of the long side). Fix the sample on the sample holder. After being dried and dried, it is placed in the combustion chamber. Ignite the sample, and the timer records the ignition time as 1±0.05s. The sample burns to the position of the cotton thread, causing the cotton thread to burn, so that the heavy hammer falls, and the switch stops when touched, and the burning time is displayed on the timing display. According to the burning time rating of the sample: acceptable level for clothing trade: 1. For non-suede fabrics, the burning time should be ≥3.5s; for suede fabrics, when there is no flashover on the surface, the burning time is required to be ＞7s; If the surface of the fabric has surface flashover, the burning time can be less than 7s. 2. Fabrics considered to be combustible by the clothing trade: suede fabrics, the burning time is between 4-7s. 3. Grade considered unacceptable by the clothing trade: non-suede fabric, burning time <3.5s. *Note: The burning time of everything is less than 3.5s, and the burning time of suede fabric is less than 4s. At the same time, the base fabric of suede fabric is ignited, charred or melted. Five additional samples need to be tested. The phenomenon of surface flashover refers to the rapid spread of flame on the surface when the basic structure of the material is not ignited. If the basic structure of the material is ignited at the same time or successively as the surface flashes, it is not a surface flash. The burning time is the average burning time of five samples. For fabrics of grades I and II, they will continue to test after dry cleaning or household washing and be rated. 4. Gellowen——The characteristics of the 45-degree combustion tester: This machine is designed with a unique push-pull handle on the transparent glass of the accessory, and the humanized design is convenient for the tester to operate. This machine is equipped with an independent timing display system, which can accurately and effectively detect and display the ignition and combustion time. This machine is equipped with a special transmission device to realize the automatic ignition function of the instrument. This machine is equipped with an external gas tank, which is safe, accurate and effective. It is convenient for the experimenter to adjust the flame length. 5. Instrument specifications and main technical parameters: Dimensions: 400*300*500mm (L*W*H) Flame spread timing range: 0-99.99s, resolution: 0.01s, ignition time: 1s or arbitrarily set. Weight: 38kg Power supply: AC 220V/50HZ/2A Flame nozzle: No. 26 injection needle More about 45 degree combustion tester: http://www.ranshaoceshi.com/
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1. ISO 5402-1: Specifies the flexometer method for testing leather flex resistance under repeated bending.
2. ISO 17694: Defines test methods for footwear upper and lining flex resistance, simulating real-world bending stress to assess long-term durability.
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