loading

PPE Testing Equipment Manufacturer | Safety Equipment Testing Machines | GESTER


Products

Common calculation formulas for textiles

Commonly used calculation formulas for textiles are divided into two types: fixed length calculation formula and fixed weight calculation formula. The calculation formula of the fixed length system:   (1), denier (D) u003dg/L*9000 where g is the weight of the silk thread (grams), L is the length of the silk thread (m)  (2), tex (number) )[tex(H)]: texu003dg/L*1000 where g is the weight (g) of the yarn (or silk), and L is the length of the yarn (or silk) (m)  (3), dtex( dtex): dtexu003dg/L*9000 where g is the weight of the thread (grams), and L is the length of the thread (meters).    fixed weight calculation formula:    (1), metric count (N): Nu003dL/G Where G is the weight (g) of the yarn (or silk), L is the length of the yarn (or silk) (m)  (2), British count (S): Su003dL/(G*840) where G is the silk thread Weight (lbs), L is the length of the thread (yards)  2, select the conversion formula:   (1), the conversion formula of metric count (N) and denier (D)u003d9000/N  (2), imperial count The conversion formula of number (S) and denier (D)u003d5315/S  (3), the conversion formula of decitex (dtex) and tex (tex): 1texu003d10dtex  (4), tex (tex) and denier (D) conversion formula: texu003dD/9  (5), tex (tex) and English count (S) conversion formula: texu003dK/SK value: pure cotton yarn Ku003d583.1 purified fiber Ku003d590.5 polyester cotton yarn Ku003d587.6 cotton viscose yarn (75:25) Ku003d584.8 dimensional cotton yarn (50:50) Ku003d587.0  (6), tex (tex) and metric number (N) Conversion formula: texu003d1000/N  (7), conversion formula of dtex and denier (D): dtexu003d10D/9  (8), dtex and imperial Number (S) conversion formula: dtexu003d10K/SK value: pure cotton yarn Ku003d583.1 purified fiber Ku003d590.5 polyester cotton yarn Ku003d587.6 cotton viscose yarn (75:25) Ku003d584.8 dimensional cotton yarn (50:50) K u003d587.0  (9), the conversion formula of decitex (dtex) and metric count (N): dtexu003d10000/N  (10), the conversion formula of metric centimeter (cm) and imperial inch (inch): 1inchu003d The conversion formula of 2.54cm  (11), metric meters (M) and English yards (yd): 1 yard u003d 0.9144 meters (12), conversion of satin square meter weight (g/m2) and millimetres (m/m) Formula: 1m/mu003d4.3056g/m2  (13), the conversion formula of actual weight of silk and pound weight: pound weight (lb) u003d weight per meter of silk (g/m)*0.9144(m/yd)*50( yd)/453.6

GET IN TOUCH WITH Us
recommended articles
Glove Tester: Key Standards EN 388 & EN 407
Protective glove testing is the core link to verify hand safety protection performance for industrial PPE. This article focuses on the two most authoritative EU mandatory standards EN 388 and EN 407, elaborates on standardized test necessity, complete test items, professional supporting glove testers, result rating rules, and the differences between mechanical risk testing and thermal risk testing. It provides one-stop compliant testing reference for glove manufacturers, third-party testing labs, and safety supervision institutions to meet global CE certification and workplace safety production requirements.
How to Test Firefighter Turnout Gear Thermal Protection?
Firefighter turnout gear plays a critical role in protecting firefighters operating in extreme environments involving high temperatures, flames, radiant heat, and convective heat. Its thermal protective performance directly affects firefighter safety and survival during fireground operations. This article explains how to test firefighter turnout gear thermal protection through Thermal Protective Performance (TPP) testing. It introduces the scientific principle based on the Stoll curve, outlines key influencing factors such as heat flux intensity and exposure time, and reviews internationally recognized standards including NFPA 1971 and ISO 17492. The article also highlights the testing advantages of the GT-RC02 TPP Thermal Protection Tester, which provides accurate, stable, and standards-compliant evaluation of flame-retardant protective clothing materials under combined radiant and convective heat exposure.
What is EN 149 & Why is it Important?
EN 149 is the core European standard for particle-filtering half masks and FFP respirators. This article elaborates on the definition, structure, performance classification, marking rules and core advantages of EN 149, compares it with NIOSH N95, KN95, EN 143 and medical mask standards, and lists industry application scenarios, as well as professional mask and filter testing instruments compliant with EN 149 testing requirements.
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.
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.
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.
How to Choose the Right DIN Abrasion Tester
This article provides a comprehensive guide to selecting the right DIN Abrasion Tester for material wear performance evaluation. It covers the instrument's function, applicable standards (including ISO 20344, DIN-53516, ISO 4649, ASTM D5963), key features like digital counter and auto-stop, application scope for rubber, tires, shoe soles, and conveyor belts, as well as quality, construction, brand considerations, and FAQs on troubleshooting. Ideal for laboratories, quality inspection departments, and material research institutions.
Analyzing the Sweating Guarded Hotplate GT-C98 & Why it is Important
The Sweating Guarded Hotplate GT-C98 is a professional textile testing instrument designed to measure thermal resistance and evaporative resistance of fabrics, garments, and personal protective equipment (PPE). By simulating heat and moisture transfer from human skin, the instrument provides reliable data for evaluating thermal comfort, breathability, and moisture management properties. This article explores the working principle, key features, applications, and importance of the GT-C98, helping manufacturers, laboratories, and researchers improve textile product development and quality assurance.
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.
What is the Safety Glove & Shoe Upper Cutting Tester GT-KC29
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
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