loading

Gester Instruments | Professional Glove, Mask, Safety Helmet, Protective Clothing & Footwear Testing Equipment Manufacturer Since 1997


Products
Test Standard

Humidification process of hot and cold impact test cases

Hot and cold impact test chamber can simulate high temperature environment with low temperature in the middle of the instant change. To distinguish the goods the credibility and reliability of the main parameters is up to standard. Will be sent to you show the forecast analysis and improve the quality of the goods and credibility. Hot and cold impact test cases to test electronic devices, cars, rubber, plastic, navigation hi-tech and high new science and technology, military communications equipment and other goods are changing all the hot cold resistance. So the humidifying process of hot and cold impact test chamber is what? Below to let us together to master: humidity said many, in terms of test equipment, the general narrative are defined with the relative humidity of the humidity. Definition of relative humidity is refers to the water vapor in the air pressure of work and the ratio of the drainage of the saturated steam pressure and temperature expressed as percentage. By water vapor saturation pressure characteristics, the water vapor saturation pressure temperature only on the number of culvert, nothing to do with water vapor can be work of gas pressure, everyone according to a lot of trial and comb for came to the water vapor saturation pressure and temperature in the middle of the association, in which has been the project and many metrological verification chosen should be gove Glenn its formula. It is at this stage the weather bureau personnel allocation humidity check calculate table chooses. Hot and cold impact test chamber and wet process in fact is ascending water vapour pressure of work, at the beginning of the humidifying method since the water is to the environmental test chamber wall, according to the control surface saturation pressure for the water temperature control. Box wall produce very big surface, the surface of the water on the surface to the box based on external diffusion method to box add vapor pressure rise in relative humidity in the environmental test chamber, it appeared in the 1950 s. Because at that time the humidity control is mainly with contacts with mercury electricity conductivity table to carry out simple switch quantity adjustment, in view of the of the big water tank temperature control weak adaptive capacity, and manipulation of cohesive process longer, do not consider variations and dampness of humidification quantity regulation more must more key is in the box wall under the condition of flowing, inevitably there are water spray on the sample on the sample is not the same level of environmental pollution. In addition to hot and cold impact test pipes is also has certain rules in the box. So we choose in early steam humidification and shallow water dish humidification, although it is longer, the manipulation of cohesion process but humidity less ups and downs, after the system software is smooth, more suitable for stable vagina experiment. In addition the water vapor in the process of humidifying but additional calorific value of the heat is not easy to improve the system software. Have, when the temperature of the control flow is less than the experimental point temperature, since the water spray with moisture effect. Definition of relative humidity is refers to the water vapor in the air pressure of work and the ratio of the drainage of the saturated steam pressure and temperature expressed as percentage. The above explanation is the hot and cold impact test box humidification process, hope can help you, if you want to learn more about information about hot and cold impact test chamber, welcome to the online consulting service or call the company service hotline ( Website top right corner) For consultation, we will wholeheartedly provide high quality service for you! Tags: & nbsp  hot and cold impact test cases

Clouds of tensile tester manufacturers failures surround the world of tensile tester manufacturers in particular, simply because people don’t pay as much attention to the textile testing equipment as they should do.

GESTER International Co.,Limited looks forward for the meeting and the association with your esteemed company.

According to the latest social survey, more than 50 percent of consumers (across all age demographics) follow a brand before purchasing a product. Therefore, GESTER's content can make or break a customer's decision to conduct business with you.

textile testing equipment continued to evolve to having strong manufacturers develop huge marketers and people came to value their opinions about what to buy.

GET IN TOUCH WITH Us
recommended articles
According to ASTM D642 Standard: Detailed Box Compression Strength Tester GT-N02A
The ASTM D642 standard defines the test method for determining the compressive resistance of shipping containers, like corrugated boxes, when faced with static compressive forces. This article details the test procedure and introduces the GESTER GT-N02A and GT-N02B Box Compression Testers, which are fully compliant with ASTM D642, ISO 12048, and TAPPI T804. These versatile machines perform destructive strength tests, constant value tests, and simulated long-term stacking tests to ensure your pac
 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.
Technical Insight: How a Professional EN388 Gloves Tester Company Evaluates Durability
In industrial settings, protective gloves’ durability is critical for workplace safety, with the EN388 standard serving as the global benchmark for evaluating abrasion, cut, tear, and puncture resistance. GESTER International Co., Ltd., a professional EN388 gloves tester company with over 20 years of experience, delivers high-precision testing solutions to ensure accurate and reliable durability assessments. Equipped with advanced instruments like the Safety Glove & Shoe Upper Cutting Tester GT-KC29—featuring LCD display, real-time monitoring, and compliance with EN, ISO, and ASTM standards—GESTER’s solutions meet the rigorous demands of laboratories, manufacturers, and international testing institutes such as SGS, TUV, and Intertek. Adhering to ISO 9001 quality management systems and offering comprehensive after-sales support (installation, training, calibration), GESTER empowers clients to validate PPE performance, mitigate workplace risks, and achieve global regulatory compliance. For trusted EN388 gloves durability testing equipment and integrated laboratory solutions, GESTER is the preferred partner in the PPE industry.
A Complete Guide to Martindale Testing by the Best Martindale Abrasion Tester Supplier
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.
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 Are the Test Methods for Fabric Bursting Strength?
Fabric bursting strength measures resistance to rupture under concentrated load. Three primary test methods are used:

Ball Burst Method (ASTM D3787): Steel ball penetration for textiles/films using testers like GT-C02-2.

Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.

Pneumatic Method (ISO 13938.2): Compressed air for breathable materials tested with GT-C12B.
Results are influenced by raw materials, yarn properties,
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.
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.
What is the Use of Air Permeability Tester?
An air permeability tester measures how easily air passes through textiles, nonwovens, and other materials, directly impacting comfort (heat/moisture management) and performance (wind resistance, filtration). This guide explains how digital testers work using pressurized airflow, details step-by-step testing procedures (including nozzle selection), and covers key applications in apparel, medical, automotive, and industrial sectors. Explore compliant standards (ISO 9237, ASTM D737, GB/T 5453) and
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.
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