loading

Gester Instruments | Professional PPE, Footwear and  Textile Testing  Equipment Manufacturers Since 1997


Products
Test Standard

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
Everything You Need to Know About the Hydrostatic Head Tester
A hydrostatic head tester evaluates the waterproof capability of textiles, automotive interiors, and industrial materials. This guide covers its working principle, core components, global test standards (ISO, AATCC, EN), and a detailed testing procedure to ensure accurate results.
Bally Leather Flexing Tester GT-KC10A Assembly Guide
This comprehensive guide provides detailed instructions for the proper assembly, calibration, and operation of the Bally Leather Flexing Tester GT-KC10A. Essential for quality control labs, it ensures accurate testing of flex resistance in leather, coated fabrics, and textiles used in footwear uppers, helping to prevent material failure.
Sweating Guarded Hotplate GT-C98 Guide: Find the Right Testing Machine for Your Needs
The Sweating Guarded Hotplate GT-C98 is a professional instrument designed to evaluate the thermal resistance (Rct) and water-vapor resistance (Ret) of textiles and related materials. By simulating human skin heat dissipation and sweating under controlled conditions, it provides accurate and repeatable data for comfort and protective performance analysis. This guide introduces the testing principle, applicable international standards, industry applications, and key technical features to help users identify the right testing machine for product development, quality control, and research.
What Are the ISTA Standard Tests and ISTA Testing Equipment?
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.
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.
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.
Shoes & Leather - Guangzhou 2025: GESTER Showcased Footwear testing Equipment on Site
GESTER impressed at Shoes & Leather Guangzhou 2025 by exhibiting high-precision footwear testing equipment like the DIN Abrasion Tester and Bally Flexing Tester, essential for quality control in shoe production. The event fostered industry collaboration, with GESTER attracting global buyers and strengthening partnerships.
Leather Physical Properties Testing Guide
This guide details the 9 critical physical property tests essential for assessing leather quality: Tensile Strength, Tear Strength, Abrasion Resistance, Thickness, Water Vapor Permeability, Water Resistance, Shrinkage Temperature, Color Fastness to Friction, and Bending Strength. It covers the testing scope (natural leather, synthetic leather, finished products, semi-finished goods) and introduces specialized testing equipment required for each method (e.g., Universal Testing Machine, Elmendorf
 Fabric Pilling Test: How to Choose the Right ICI Pilling Box Tester GT-C18
Fabric pilling directly affects the appearance, durability, and perceived quality of textile products. With global textile brands enforcing stricter testing standards, reliable laboratory testing equipment has become essential for manufacturers. This article explores how fabric pilling tests are conducted and why textile laboratories increasingly invest in professional ICI pilling box testers such as the GT-C18. It explains the advantages of in-house testing, international compliance requirements, key machine components, and important parameters buyers should evaluate before purchasing a pilling tester. By selecting the right equipment, textile companies can achieve faster quality verification, reduce dependence on third-party laboratories, and ensure their fabrics consistently meet international market standards.
How to Improve Plastic Film Drop Dart Impact Strength
Discover actionable strategies to enhance the drop dart impact strength of plastic films for packaging, agriculture, and construction. Learn how material selection, additives, processing, and rigorous ASTM/ISO drop dart impact testing ensure product durability and prevent failure.
no data
Quanzhou 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:  Block 402,4th floor, f buliding, shengfulan business Center, no.577 jitai road, economic and  Technological development zone quanzhou of fujian.China.
Customer service
detect