loading

PPE Testing Equipment Manufacturer | Safety Equipment Testing Machines | GESTER


Products

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

GESTER International Co.,Limited’s sole aim is to provide exquisite and unheard of features to the concept of producing technology.

GESTER International Co.,Limited is the best manufacturer which has rich experience on manufacturing.

GET IN TOUCH WITH Us
recommended articles
How to Choose the Right Glove Testing Equipment
Choosing the right glove testing equipment is essential for evaluating the safety, durability, and protective performance of gloves. This guide explains the main types of glove testing equipment, including thermal protection, cut and abrasion resistance, tensile strength, and environmental conditioning equipment. It also introduces key glove testing standards such as EN 388, EN ISO 13997, ISO 37, ASTM D412, ISO 12947, and related thermal protection standards. By understanding your testing requirements, applicable standards, sample conditioning needs, maintenance requirements, and budget, you can build a more efficient and standard-compliant glove testing laboratory.
Looking for a Laboratory Protective Clothing Tester Supplier? Key Criteria to Consider
As global demand for high-performance PPE surges, selecting a qualified laboratory protective clothing tester supplier becomes critical for manufacturers and regulators. This article outlines core selection criteria: compliance with international standards (ISO, EN, ASTM), comprehensive protective gear tests (particle resistance, fluid barrier, thermal resistance, electrostatic safety), manufacturer qualifications (ISO 9001 certification, partnerships with SGS/TUV/Intertek), equipment precision (automation, modular design, data traceability), and end-to-end service (global support, calibration, customization). With 25+ years of experience, GESTER International delivers standards-aligned, high-precision testing instruments and integrated laboratory solutions, ensuring PPE meets rigorous safety requirements for medical, industrial, and chemical sectors. Explore how to choose a partner that safeguards worker safety through reliable testing.
Must-See Innovation: Leading Safety Helmets Tester Company at A+A International Trade Fair
The A+A International Trade Fair in Düsseldorf serves as the global hub for occupational safety and PPE innovation, where GESTER—an industry leader with over 20 years of R&D experience—shines as a top safety helmets tester company. This article explores the evolving global safety standards (ISO, ASTM, EN, ANSI) driving demand for advanced testing equipment, and highlights GESTER’s high-precision solutions for impact absorption, penetration resistance, and flame resistance testing. With ISO 9001 certification, computerized automation, real-time data capture, and a comprehensive global support framework (on-site installation, calibration, OEM/ODM services), GESTER empowers PPE manufacturers and laboratories to meet rigorous compliance requirements. The company’s presence at A+A underscores its commitment to bridging innovative PPE design with reliable safety validation, helping businesses accelerate time-to-market while ensuring worker protection worldwide.
GESTER: China Top PPE Testing Equipment Company Leading Global Safety Standards
Since 1997, GESTER International Co., Ltd has emerged as China’s top PPE testing equipment company, with 25+ years of R&D experience in high-precision testing instruments. Serving clients in over 160 countries and partnering with global leaders like SGS, Intertek, and TUV, GESTER aligns its products with international standards (ISO, ASTM, EN, GB) to ensure reliable PPE performance. Highlighted by the GT-RC02B TPP Thermal Protection Tester—capable of simulating extreme thermal environments and calculating critical safety metrics like TPP values and escape time—and the GT-KC28 TDM Cut Test Machine, GESTER’s portfolio covers thermal protection, cut resistance, footwear testing, and more. The company offers comprehensive support, including ISO 17025/NFPA-aligned calibration, on-site installation, and staff training, empowering PPE manufacturers and testing laboratories to meet stringent global regulations, prevent workplace injuries, and accelerate market access. As a leader in global safety standards, GESTER combines technical precision, user-centric design, and lifecycle service to deliver tailored solutions for high-risk industries worldwide. Visit https://www.gesterinstruments.com/ for full product details.
Cobb Test Paper Absorption Tester GT-N07 - A Comprehensive Guide
The Cobb Test Paper Absorption Tester GT-N07 is an essential instrument for evaluating the water absorption properties of paper and paperboard materials. This test, commonly known as the Cobb method, helps determine how much water paper can absorb over a specified time under controlled conditions—crucial for assessing its suitability in printing, packaging, and coating applications.
Leather Industry Innovations: GESTER at ACLE as a Footwear Testing Equipment Factory
The global leather and footwear industry is shifting toward prioritizing durability, material integrity, and functional excellence—driving demand for high-precision testing equipment. As a highlight of ACLE 2026 (All China Leather Exhibition), GESTER International Co., Ltd., a 25+ year footwear testing equipment factory, showcases innovative solutions tailored to this trend. Trusted by leading testing institutes like SGS, TUV, and Intertek, GESTER’s product lineup includes the Martindale Abrasion Tester (for surface durability), Tension Testing Machine (for mechanical properties), and Safety Shoe Cutting Tester—all compliant with ISO, ASTM, and EN standards. These instruments integrate automation (PLC systems) and data traceability to reduce human error, support ISO 9001 compliance, and streamline laboratory efficiency. With a global service network spanning 160+ countries, GESTER offers on-site installation, calibration, and software updates to ensure long-term usability. The article also outlines strategic procurement tips for manufacturers, emphasizing modular design, standard compatibility, and supplier track records. For leather and footwear brands seeking to enhance product reliability, avoid recalls, and stay competitive, GESTER’s ACLE 2026 innovations and end-to-end support provide a definitive quality assurance solution.
Why GESTER Ranks as a Leading TPP Thermal Protective Performance Tester Exporter
As a trusted leading TPP Thermal Protective Performance Tester exporter, GESTER International Co., Ltd. brings 25+ years of R&D and manufacturing expertise to PPE safety testing. Our flagship GT-RC02 series TPP testers feature advanced dual-source thermal simulation, high-sensitivity sensors, and full digital automation—delivering precise, repeatable data to evaluate thermal protection for firefighter and industrial protective clothing. Fully compliant with global standards (NFPA 1971, EN 469, ISO), GESTER’s equipment is trusted by SGS, Intertek, and top testing institutes worldwide. Backed by ISO 9001 certification, global service in 160+ countries, and professional calibration support, we empower manufacturers and labs to meet stringent safety regulations and ensure life-saving thermal protection. Discover tailored TPP testing solutions for PPE excellence at GESTER.
Which Safety Footwear Test Method Is Suitable for You?
Selecting the correct safety footwear test method is essential for ensuring product durability, worker protection, and international compliance. Different tests evaluate different performance characteristics, including impact resistance, slip resistance, and outsole abrasion. This article explains how each testing method works, the applicable ISO, ASTM, DIN, and SATRA standards, and when manufacturers should use each test to improve product quality, reduce failures, and meet global certification requirements.
Heat Contact Machine GT-C101-The Ultimate Selection Guide

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.
Safety Footwear Tester Guide ISO 20346 with Buying Tips
This guide explains the ISO 20346 standard for general-purpose protective footwear, differentiates it from related ISO standards, and shares core buying tips for qualified safety footwear testers. It also introduces professional multi-standard compliant testing equipment for footwear quality control and compliance verification.
GESTER International Co., Ltd. gains certificates of ISO 9001, 3A and SGS Audited supplier etc. with advanced design concept, excellent manufacturing technology and strict quality control.
WeChat
Contact us
Tel: +86-595-28886108 
Fax: +86-595-22515221
E-mail: sales10@gester-instruments.com,
                 info@gester-instruments.com
Mobile/Whatapp/ Wechat:  
             + 86(0)18059983973
Address:  No.15, Chifeng Road,Licheng Region, Quanzhou city of Fujian,PR China.
Customer service
detect