Experimental test method of glow wire testing machine
The function of the glow wire testing-equipment' target='_blank'>testing machine: Insulating materials or other solid combustible materials that are easy to spread flame inside the equipment may ignite due to the glow wire or hot components. It is suitable for the fire hazard test of electrical and electronic products, household appliances and their materials, and simulates the thermal stress caused by heat sources or ignition sources such as hot components or overload resistors in a short time. 1. Purpose: Standardize the operation, maintenance, and maintenance of the glow wire testing machine to make the equipment operate normally. 2. Scope: It is suitable for the flame retardant test of plastic parts of various products. 3. Reference standards: According to GB/T 5169.10-2008 'Glow Wire, Hot Wire Basic Experimental Methods, Glow Wire Apparatus and General Experimental Methods2. Digital instrument: adopt Korean autonics (Autonics) display. 3. Circuit breaker: Schneider 4. Buttons, switches, indicator lights: Shanghai. 5. Cabinet: Made of 1.2-thick 304 stainless steel plate, painted on the surface. V. Operation process 1. Preparations before the operation of the glow wire testing machine a. Be sure to read the instructions carefully before use, and follow the instructions, and operate in sequence; b. Do not use accessories that are not provided by the original manufacturer to avoid danger; c. The glow-wire testing machine is placed in a room with degreasing ventilation equipment (or in a small laboratory with a special ventilation hood) to facilitate the discharge of exhaust gas after the test. d. Hang the two supporting weights with copper wires (connected to the sample rack) through the two pulleys (passing through the corresponding small holes) at the left end of the bracket under the bracket plate. e、According to the requirements of the standard to know the interest and clamp the sample. f. Adjust the proximity switch 2. Loosen the nut that fixes the proximity switch and move it left and right; 3. Press the 'left button' and the trolley will move forward automatically. When the test product touches the glowing wire, move the proximity switch by hand , Stop the car and fix the proximity switch. 4. Press the 'heating' button to adjust the current adjustment knob. According to the requirements of the sample, adjust the appropriate current value and see if the temperature reaches the required temperature for the test. When the test product touches the glow wire head, the limit electromagnet is released, and it can only move forward 7mm with the pull of 1N weight. When the experiment is completed, pop up the heating button, and then turn the current adjustment knob to the minimum. More about glow wire testing machine: http://www.standard-groups.com/FlammabilityTesting/1039.html
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The air permeability tester is a high-precision testing instrument designed to evaluate the breathability of PPE materials, textile fabrics, non-woven fabrics, woven fabrics, and industrial filter media. It plays a critical role in quality control, product development, and laboratory research across multiple industries including PPE, textiles, automotive interiors, and filtration systems.
Modern instruments such as the GT-C27 Air Permeability Tester are developed with advanced sensor systems, automated control logic, and multi-standard compatibility to ensure reliable and repeatable results. Complying with global standards such as ISO 9237, ASTM D737, DIN 53887, and GB/T 5453, it guarantees internationally recognized testing performance.
With high automation, accurate pressure sensing, and flexible unit conversion systems, air permeability testing equipment significantly improves testing efficiency while reducing human error. It is widely used in PPE manufacturing, textile engineering, non-woven product development, and industrial filtration quality inspection.
Personal protective equipment must meet specific performance requirements before it can be used in demanding workplace environments. ISO, EN, and ASTM standards provide important test methods and performance requirements for different PPE categories. However, the applicable standard depends on the product, intended application, target market, and specific protection requirements.
This guide explains the role of ISO, EN, and ASTM standards in PPE testing and introduces common requirements for safety footwear, protective gloves, protective clothing, masks, and safety helmets. It also explains how laboratories can select suitable PPE testing equipment according to the applicable test method.
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