What is an oxygen index tester?
The equipment for measuring the oxygen index is called an oxygen index tester. This tester can measure the oxygen index of a variety of materials such as plastics, rubber, textile fabrics, wood, foam materials and other polymer materials. The instrument is mainly composed of combustion cylinder, sample holder, gas source, flow meter and control part. Sample holder: used to support the sample vertically in the center of the combustion tube. For self-supporting materials, the clamp should be at least 15mm away from the nearest point where the test specimen may be burnt. For film or sheet, use a frame with two vertical sides to support the sample, and mark lines at 20mm and 100mm from the top of the frame. The fixture and support frame should be smooth to minimize the interference of the updraft. Gas source: Oxygen and/or nitrogen and/or clean air with a purity (mass fraction) not less than 98% can be used as the gas source. Combustion cylinder: It is composed of a heat-resistant glass cylinder which is vertically fixed on the base and can introduce oxygen-containing mixed gas. The preferred size of the combustion cylinder is height (500±50) mm and inner diameter (75~100) mm. Timer: measuring time up to 5min, accuracy ±0.5s. Smoke exhaust system: There are ventilation and exhaust facilities, which can remove the smoke or ash particles in the combustion tube, but can not interfere with the gas flow rate and temperature in the combustion tube. Flow measurement and control system: It is composed of pressure gauge, stabilizing valve, pipeline and rotameter. The measured oxygen and nitrogen gas enter the combustion cylinder through the air inlet at the bottom of the combustion cylinder after passing through the gas mixer. Igniter: It is composed of a tube whose end diameter is 2mm±1mm, which can be inserted into the combustion tube and spray flame to ignite the sample. The fuel of the flame should be propane without air. When the pipe is inserted vertically, the combustion supply should be adjusted so that the flame is sprayed vertically downward from the outlet 16mm ± 4mm. Standard Group is a professional testing equipment manufacturer, focusing on the development of textile testing equipment, including: plastic oxygen index tester, high temperature oxygen index tester, limiting oxygen index tester, intelligent oxygen index tester, etc., and also actively expand other The diversified product structure of industry testing instruments enables Standard Group to always maintain an advantageous position in an increasingly competitive market, and can fully meet the increasingly complex and diversified needs of customers.
One increasingly popular managerial tactic to improve problem-solving performance of textile testing equipment is to increase the connectedness, or what academics call clustering, of the organization
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The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
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.
Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
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