loading

PPE Testing Equipment Manufacturer | Safety Equipment Testing Machines | GESTER


Products

Commonly used calculation formulas for textiles

The commonly used calculation formulas for textiles are divided into two types: fixed-length calculation formulas and fixed-weight calculation formulas. Calculation formula for custom length system: (1), Denier (D) =g/L*9000 Where g is the weight of the wire (grams), L is the length of the wire (m) (2), tex (number of )[tex(H)]: tex=g/L*1000 where g is the weight of the yarn (or silk) (grams), L is the length of the yarn (or silk) (m) (3), dtex ( dtex): dtex=g/L*9000 where g is the weight of the thread (grams), L is the length of the thread (m) Customized weight calculation formula: (1), metric count (N): N=L/G Wherein G is the weight of the yarn (or silk) (grams), L is the length of the yarn (or silk) (m) (2), inch count (S): S=L/(G*840) where G is the silk thread The weight (pounds), L is the length of the wire (yards) 2. Select the conversion formula: (1), the conversion formula of metric count (N) and denier (D) = 9000/N (2), inch count Conversion formula of number (S) and denier (D) = 5315/S (3), conversion formula of decitex (dtex) and tex (tex): 1tex=10dtex (4), tex (tex) and denier (D) conversion formula: tex=D/9 (5), tex (tex) and imperial count (S) conversion formula: tex=K/S K value: pure cotton yarn K=583.1 Purified fiber K=590.5 Polyester cotton yarn K=587.6 Cotton viscose yarn (75:25) K=584.8 Fiber cotton yarn (50:50) K=587.0 (6), tex (tex) and metric number (N) The conversion formula: tex=1000/N (7), the conversion formula of dtex (dtex) and denier (D): dtex=10D/9 (8), dtex (dtex) and imperial branch Conversion formula of number (S): dtex=10K/S K value: pure cotton yarn K=583.1 purified fiber K=590.5 polyester cotton yarn K=587.6 cotton viscose yarn (75:25)K=584.8 fiber cotton yarn (50:50)K =587.0 (9), the conversion formula of decitex (dtex) and metric count (N): dtex=10000/N (10), the conversion formula of metric centimeter (cm) and imperial inch (inch): 1inch= 2.54cm (11), the conversion formula of metric meter (M) and imperial yard (yd): 1 yard = 0.9144 meters (12), the conversion of silk and satin square meter weight (g/m2) and mummy (m/m) Formula: 1m/m=4.3056g/m2 (13) Conversion formula between the actual weight of silk and pound weight: pound weight (lb) = silk weight per meter (g/m)*0.9144(m/yd)*50( yd)/453.6

GET IN TOUCH WITH Us
recommended articles
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.
Why GESTER is Recognized as a Global Top Safety Shoe Tester Exporter
As global industrial safety requirements tighten, GESTER International Co., Ltd has emerged as a globally recognized top safety shoe tester exporter, serving 168 countries with over 25 years of specialized expertise. The company’s success hinges on its commitment to precision engineering, compliance with international standards (ISO, ASTM, EN, SATRA), and partnerships with renowned testing institutes like SGS, Intertek, and TUV. Its product lineup, including the Safety Glove & Shoe Upper Cutting Tester GT-KC29 and cut resistance testers, delivers reliable, repeatable data for safety footwear durability, cut resistance, and other critical performance indicators. Complemented by a comprehensive global service network (on-site installation, calibration, staff training) and OEM/ODM customization capabilities, GESTER streamlines quality control for manufacturers, facilitating market access and ensuring workplace safety. Trusted by PPE brands and laboratories worldwide, GESTER bridges technical excellence and practical usability to drive efficiency in safety shoe certification and global trade.
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.
Why TDM Cut Test Machine GT-KC28 Is Needed in PPE Testing

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.
Universal Testing Machine Dual Column GT-K01: A Reliable Solution for footwear Testing
The Universal Testing Machine Dual Column GT-K01 is a high-precision mechanical testing instrument widely used in the footwear industry to evaluate tensile, compression, bending, tearing, and bonding strength of various materials. With advanced servo control, high-accuracy displacement measurement, and compliance with multiple international testing standards such as SATRA, ASTM, ISO, and BS, the GT-K01 footwear universal testing machine provides reliable data for quality control, material research, and product certification. This article explores the working capabilities, structural features, and practical value of the GT-K01 universal testing machine in footwear testing and manufacturing processes.
Safety Footwear Test Explained: Compression and Puncture Tester
This article fully explains the working principle, applicable international standards, test advantages and application scope of safety footwear compression and puncture tester GT-KB12A. It covers core protective performance testing of safety shoe toecap and sole steel plate, complies with GB, ISO, EN, ASTM and other global standards, and serves manufacturers, third-party labs and safety footwear R&D institutions for quality control .
PPE Testing Equipment: Complete Guide to Personal Protective Equipment Testing
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.
PPE Testing Laboratory Equipment List
Setting up a PPE testing laboratory requires the right combination of instruments for safety footwear, gloves, protective clothing, masks and safety helmets. This guide explains the core testing equipment used in modern PPE laboratories, the standards they support, and the functions of each instrument, helping manufacturers, third-party laboratories and certification bodies choose a reliable and compliant testing setup.
Mask Testing Equipment: Everything You Need to Know
This article comprehensively introduces mask testing equipment, including its definition, application significance, core international testing standards, main equipment types and functional characteristics. It also puts forward a step-by-step selection guide and common selection misunderstandings, providing a reference for mask manufacturers, third-party testing institutions and regulatory departments to select appropriate testing equipment, so as to ensure mask product quality, pass international certification and protect user safety.
How to Choose the Right Safety Shoes Testing Equipment Supplier?
Safety shoes are essential personal protective equipment (PPE) in high-risk industries. To ensure compliance with international standards such as EN ISO 20345 and ASTM F2413, professional testing equipment is required. This article explains common safety shoes test items, corresponding testing machines, and how to choose a reliable safety shoes testing machine supplier. It also analyzes key factors such as technical capability, standard compliance, equipment stability, and cost performance to help enterprises build a strong quality control system and enhance global competitiveness.
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)18059985379
Address:  No.15, Chifeng Road,Licheng Region, Quanzhou city of Fujian,PR China.
Customer service
detect