How to do office chair foot frame test
7. 1 applicability to this test for all the chair foot type rack chassis. 7. 2 test objective the purpose of this test is to assess excessive foot frame under vertical load. 7. 3 test steps a) Demolition of pneumatic rod or castor ( Castor set to keep in place) , generation to obstacles or support. Recommend the use of castor stem to provide support. Obstacles or support should be high enough, in the middle of the test to avoid the foot frame column and/or legs of contact test platform. Will cushion support dismantle machinery and height adjustment from the feet, shelves. Along the vertical direction of horse central column or tapered/horse interface shape fixed model of load test. b) Is applied load, the chair foot leg should be able to move sideways, feet wearing the central column should be able to move along the vertical direction. Obstacles or support should be with the original position of castor/pneumatic rod and similar supporting way, and not hinder its any deflection during testing and/or lateral movement, also can't weaken the rigor of the test. 7. A) 4 test procedure The horse with 11120 N ( 2500 LBS) The force, time lasts 1 min. b) Lift the load. c) The horse again to 11120 N ( 2500 LBS) The force, time lasts 1 min. d) Lift the load, according to 7. 5 to evaluate product acceptance level. 7. The interior structure of 5 accept horse can't sudden big change. Is applied load, the horse can not contact the central column test platform. Instrument co. , LTD is located in the songshan lake high-tech industrial park, the most innovative features huazhong university of science and technology mechanical nc manufacturing engineering research and software research and development core team, professional production and research and development of all kinds of furniture testing instruments, toys, textile testing instrument testing instruments and general testing instrument. You are welcome to inquire
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The air permeability tester is a high-precision testing instrument designed to evaluate the breathability of PPE materials, textile fabrics, non-woven fabrics, woven fabrics, and industrial filter media. It plays a critical role in quality control, product development, and laboratory research across multiple industries including PPE, textiles, automotive interiors, and filtration systems.
Modern instruments such as the GT-C27 Air Permeability Tester are developed with advanced sensor systems, automated control logic, and multi-standard compatibility to ensure reliable and repeatable results. Complying with global standards such as ISO 9237, ASTM D737, DIN 53887, and GB/T 5453, it guarantees internationally recognized testing performance.
With high automation, accurate pressure sensing, and flexible unit conversion systems, air permeability testing equipment significantly improves testing efficiency while reducing human error. It is widely used in PPE manufacturing, textile engineering, non-woven product development, and industrial filtration quality inspection.
Personal protective equipment must meet specific performance requirements before it can be used in demanding workplace environments. ISO, EN, and ASTM standards provide important test methods and performance requirements for different PPE categories. However, the applicable standard depends on the product, intended application, target market, and specific protection requirements.
This guide explains the role of ISO, EN, and ASTM standards in PPE testing and introduces common requirements for safety footwear, protective gloves, protective clothing, masks, and safety helmets. It also explains how laboratories can select suitable PPE testing equipment according to the applicable test method.
Choosing the right abrasion testing equipment is essential for obtaining accurate and repeatable wear resistance results. DIN Abrasion Tester and Taber Abrasion Tester are two widely used abrasion testing machines, but they are designed for different material types and testing purposes.
This article provides a detailed comparison between DIN Abrasion Tester and Taber Abraser, covering their working principles, specimen requirements, industry applications, standard compliance, technical characteristics, operation features and practical advantages. DIN Abrasion Tester is mainly designed for rubber, elastic materials, tires, conveyor belts and footwear soles, while Taber Abrasion Tester is suitable for flat materials such as coatings, textiles, plastics, leather, metals and decorative surfaces.
By understanding the differences between these two abrasion testing methods, laboratories can select the most suitable abrasion tester based on sample geometry, testing standards and production quality control requirements.
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