loading

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


Products
Test Standard

Why do high and low temperature test chamber temperature difference is too big?

High and low temperature testing-equipment' target='_blank'>test chamber is main equipment of temperature humidity environment test. Mainly in high and low temperature, humidity test, evaluation of products and heat-resistant wet performance, to ensure that all products under all environmental standards can run normally, however, in the high and low temperature test chamber environmental test, if the temperature uniformity is beyond permissible error range, the data from experiment, test data can not be as high and low temperature test the limits of the material or product performance. What's causing high and low temperature test chamber temperature uniformity is beyond the scope of allowed error? Here let's go to know: 1, high and low temperature test box test object difference: if placed in the high and low temperature test indoor enough internal overall heat convection test samples, the influence of internal temperature uniformity, namely the temperature uniformity, is bound to suffer the influence of a certain level. For example, if a glowing products as heat load placed, it will be very large effects on the temperature uniformity. In addition, high specific heat capacity of the product, such as aluminium, can also lead to too much error. 2, high and low temperature test chamber internal structure and space design problem also is likely to result in uneven temperature test chamber. This level mainly reflects on the sheet metal design and sheet metal processing plant, such as design of ventilation duct, placed along the heat pipe and the output power of the centrifugal fan. This will affect the temperature uniformity of small box. 3, because of the high and low temperature test chamber is not the same structure, test indoor wall temperature will be uneven, also, in turn, affects the liquidity of the gas, which results in uneven temperature. 4, because the studio walls before and after, left, right, up, down, six surface heat transfer coefficient is different, some have bore test, inspection, etc. The shell temperature caused by uneven, and even affect the test chamber radiation source, which affect the temperature uniformity. 5, high and low temperature test chamber door sealing is not strict, such as the gate leakage and sealing strip made no seams, etc. Thus affecting work the temperature uniformity of interior space. 6, if the volume of the test object is large, or if the test object is placed in the high and low temperature test chamber method of work is not modest part of the lumen or air convection in the cavity would be cut off, and will produce large deviation of temperature uniformity. The interpretation of the above is the cause of the high and low temperature test chamber temperature difference is too large, the hope can help you, if you want to learn more about information of high and low temperature 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  high and low temperature test chamber

GESTER International Co.,Limited specializes in undertaking corporate offers to cater the needs of different companies.

We are proud to be one of the largest suppliers out there. You will love what we offer for your textile testing equipment solution. Check our website at GESTER or call to talk to our customer service department with any questions you may have.

textile testing equipment is receiving a great positive feedback in the market. And many of our clients are fully satisfied with it.

GET IN TOUCH WITH Us
recommended articles
ISO 17694 / ISO 5402-1: Footwear Flexing Resistance Test Methods
Footwear soles and uppers endure thousands of flex cycles during use, risking premature cracking, delamination, or chipping if material resistance is inadequate. This technical analysis details two critical international standards:

1. ISO 5402-1: Specifies the flexometer method for testing leather flex resistance under repeated bending.

2. ISO 17694: Defines test methods for footwear upper and lining flex resistance, simulating real-world bending stress to assess long-term durability.

C
Leather Industry Innovations: GESTER at ACLE as a Footwear Testing Equipment Factory
The global leather and footwear industry is shifting toward prioritizing durability, material integrity, and functional excellence—driving demand for high-precision testing equipment. As a highlight of ACLE 2026 (All China Leather Exhibition), GESTER International Co., Ltd., a 25+ year footwear testing equipment factory, showcases innovative solutions tailored to this trend. Trusted by leading testing institutes like SGS, TUV, and Intertek, GESTER’s product lineup includes the Martindale Abrasion Tester (for surface durability), Tension Testing Machine (for mechanical properties), and Safety Shoe Cutting Tester—all compliant with ISO, ASTM, and EN standards. These instruments integrate automation (PLC systems) and data traceability to reduce human error, support ISO 9001 compliance, and streamline laboratory efficiency. With a global service network spanning 160+ countries, GESTER offers on-site installation, calibration, and software updates to ensure long-term usability. The article also outlines strategic procurement tips for manufacturers, emphasizing modular design, standard compatibility, and supplier track records. For leather and footwear brands seeking to enhance product reliability, avoid recalls, and stay competitive, GESTER’s ACLE 2026 innovations and end-to-end support provide a definitive quality assurance solution.
What are The Flame Retardant Test Methods ?
Flame retardant testing evaluates materials' ability to resist ignition and slow fire spread. This guide covers key textile test methods (45°, horizontal, vertical), standards (ASTM, ISO, BS), and equipment like flammability testers for upholstery, carpets, and fabrics.
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.
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.
Elmendorf Tearing Strength Tester GT-C11A You Should Know
The Elmendorf Tearing Strength Tester GT-C11A is a pivotal instrument for evaluating the tearing resistance of various materials, including textiles, non-wovens, paper, and films. Utilizing the proven pendulum method, it delivers precise, repeatable data crucial for quality assurance, product development, and compliance with international standards like ASTM and ISO. This article explores its working principle, key features such as automated testing and pneumatic clamping, and its wide-ranging applications across multiple industries, highlighting why the GT-C11A is a trusted choice for professionals seeking reliable and efficient material performance analysis.
Why is TPP Testing Important for Firefighter Protective Clothing
TPP testing objectively evaluates the thermal protective performance of firefighter protective clothing under extreme radiant and convective heat. This article explains TPP testing principles, its role in meeting NFPA/ISO standards, and how advanced equipment like the GT-RC02 TPP tester helps ensure clothing reliability and firefighter safety.
What is the Safety Footwear Impact Tester & Why are They Important in Safety Shoes Testing
A Safety Footwear Impact Tester evaluates the impact resistance of safety shoes by striking the steel toe cap with 100J/200J kinetic energy, ensuring compliance with global standards (EN ISO 20344, ASTM F2412). It’s critical for verifying product protection, facilitating certification, and optimizing safety shoe design. GESTER Instruments offers reliable, user-friendly testers trusted by manufacturers and labs worldwide.
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.
GESTER's Success at Shoes & Leather - Vietnam 2025
GESTER successfully participated in Shoes & Leather Vietnam 2025 (July 9-11), showcasing cutting-edge footwear testing machines. Visitors explored equipment like the Bally Resistance Flexing Tester and Martindale Abrasion Tester, with many expressing strong collaboration interest. Learn more about GESTER’s innovative solutions for the footwear industry.
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