What are the types of geosynthetics and how to classify them
2021-08-16
Gester Instruments
323
The raw materials of geotextiles, geomembranes, geocomposites and geotechnical special materials are mainly polyethylene, polypropylene, polyvinyl chloride and other high-molecular polymers. In recent years, geotextiles, geomembranes, and geocomposites have been widely used in water conservancy projects. Geotextiles are divided into two types: woven geotextiles and non-woven geotextiles. Among them, needle-punched non-woven geotextiles have the characteristics of high porosity, high permeability, and good drainage performance. They are often used as drainage reaction in dam projects. Filter facilities are widely used. The geomembrane has good anti-seepage performance, the vertical permeability coefficient is less than 1×10-11cm/s, and the price is cheap, but its CBR bursting strength is low, and it is not suitable for use in engineering parts with high anti-seepage requirements. It is generally used for vertical prevention of dam foundations. Infiltrate. Geocomposite is a product that combines two or more geosynthetics. It has a wide variety and different functions. Among them, composite geomembrane has dual functions of anti-seepage and drainage, and is widely used in dam projects. In recent years, there have been more and more manufacturers of geosynthetics, the scale of production is increasing, the varieties are more and more, and the quality can basically meet the national standards; secondly, the research on geosynthetics has become more and more in-depth, and many countries have formulated Standards or specifications provide a technical basis for the promotion of this material, and the research, production, and design of geosynthetics have gradually matured.
GET IN TOUCH WITH Us
recommended articles
Choosing the right abrasion testing equipment is essential for obtaining accurate and repeatable wear resistance results. DIN Abrasion Tester and Taber Abrasion Tester are two widely used abrasion testing machines, but they are designed for different material types and testing purposes.
This article provides a detailed comparison between DIN Abrasion Tester and Taber Abraser, covering their working principles, specimen requirements, industry applications, standard compliance, technical characteristics, operation features and practical advantages. DIN Abrasion Tester is mainly designed for rubber, elastic materials, tires, conveyor belts and footwear soles, while Taber Abrasion Tester is suitable for flat materials such as coatings, textiles, plastics, leather, metals and decorative surfaces.
By understanding the differences between these two abrasion testing methods, laboratories can select the most suitable abrasion tester based on sample geometry, testing standards and production quality control requirements.
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.
ISTA (International Safe Transit Association) standard tests are globally recognized transportation packaging test procedures designed to evaluate the safety and reliability of products and their packaging throughout the logistics chain. By simulating real-world transportation conditions such as drops, vibration, impact, stacking, and compression, ISTA testing helps identify potential packaging weaknesses before products enter large-scale distribution. ISTA testing equipment—including drop testers, vibration testers, incline impact machines, and compression testers—plays a critical role in accurately reproducing these conditions under laboratory settings. Proper selection and use of ISTA-compliant equipment enable manufacturers to reduce transportation damage, lower return costs, enhance packaging design, and improve customer confidence in product quality and logistics safety.
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.
Durability is critical for textiles and footwear, and Martindale testing is the gold standard for measuring abrasion resistance and pilling performance. This guide dives into Martindale testing’s core mechanics (Lissajous figure multi-directional friction), strategies to boost testing accuracy (sample clamping, load calibration, abrasive standardization), and compliance with international standards (ISO 12947, ASTM D4966, EN). As a top Martindale abrasion tester supplier with 25+ years of expertise, GESTER International delivers high-precision instruments (Martindale Abrasion Tester GT-C13B, etc.) certified to ISO 9001 and trusted by SGS, Bureau Veritas, and other global testing institutes. Beyond machinery, GESTER offers global technical support, on-site installation, and calibration services. The guide also includes a procurement framework to help labs select tailored Martindale testing solutions. For reliable, standard-compliant durability testing, GESTER is your trusted partner.
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.
PPE Testing Equipment is used to evaluate the safety, durability, and protective performance of personal protective equipment under controlled test conditions. This complete guide covers five major PPE testing categories: Safety Footwear Testing Equipment, Glove Testing Equipment, Protective Clothing Testing Equipment, Mask Testing Equipment, and Safety Helmet Testing Equipment. Learn about common PPE test methods, applicable standards, equipment types, laboratory requirements, and key factors to consider when selecting PPE Test Equipment for quality control, product development, certification, and laboratory applications.
As 2026 approaches, the global PPE industry is transformed by stricter industrial safety regulations, healthcare awareness, and evolving international standards (ISO/ASTM/EN). Key trends include the rise of Smart PPE, adoption of sustainable bio-based materials, and converging global compliance requirements—demanding high-precision, automated testing equipment with data traceability. GESTER International Co., Ltd., a China top PPE testing machine company with 25+ years of expertise, addresses these challenges through modular, standards-aligned solutions (e.g., TPP Thermal Protection Tester GT-RC02A, TDM Cut Test Machine GT-KC28) and long-term partnerships with SGS, TUV, and Intertek. Offering global technical support (installation, calibration, training) and automated, multi-standard-compatible equipment, GESTER empowers PPE manufacturers to meet 2026’s rigorous safety benchmarks. This article explores PPE performance evolution, 2026 industry trends, technological testing responses, and strategic procurement tips—emphasizing how China’s leading testing machine providers bridge hardware innovation with global compliance to protect human life. For professional PPE testing solutions, visit https://www.gesterinstruments.com/.
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.
The Safety Glove & Shoe Upper Cutting Tester GT-KC29 is a high-precision testing instrument developed to measure the cut resistance performance of safety gloves and footwear uppers. In industrial and construction environments where sharp tools and metal edges pose significant injury risks, the GT-KC29 provides a reliable evaluation method by simulating real cutting motion. This tester meets EN 388 section 6.2, ISO 20344:2021 section 5.23, GB/T 20991 section 6.14, and other global standards, making it essential for PPE manufacturers, testing laboratories, and quality control departments. With automated operation, high repeatability, and multi-standard compliance, it helps companies improve product safety levels, enhance global competitiveness, and ensure superior protection for end users.
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
Quick links
Products
Contact us
Mobile/Whatapp/ Wechat:
+ 86（0）18059985379
Address: No.15, Chifeng Road,Licheng Region, Quanzhou city of Fujian,PR China.
Friendly Links: Physial Testing Instruments And Equipments