As a high-tech enterprise with more than 30 years of experience in research and development of testing instruments, Labthink responded swiftly to join the support for fighting the epidemic, we provide corresponding laboratory testing instruments for medical protective products manufacturers, medical equipment testing institutions and other involved institutions. . Relevant tests and testing instruments are introduced below. Continue reading
Separation membranes selectively separate gases, and the separation coefficient of gases is a key performance index in measuring separation effect. In this paper, by testing the permeability of nitrogen and carbon dioxide to a certain membrane sample, the separation ability of the sample to nitrogen and carbon dioxide is evaluated. The test principle, the parameters, application of the pressure differential method testing equipment, and the test process are introduced. Reference for the analysis and test of the separation effect of the membrane is provided. Continue reading
Moisture-proof is an important measure to ensure the safety of outdoor electrical equipment. In addition to the advanced humidity control measures such as temperature and humidity control device and moisture-proof monitoring system, a new type of environmental friendly moisture-proof sealing material -- moisture-proof and fire-proof sealant, is increasingly used for outdoor padmount transformer, cable box, outdoor terminal of substation and other common outdoor electrical equipment. Continue reading
Basically, increasing the thickness of film materials is one of the important measures to improve the barrier properties of packages. Meanwhile, the increase of materials thickness is bound to increase packaging costs. This article studied the influence of increasing the thickness of single layer membrane in composite materials on the barrier properties of packages, through test the oxygen permeation of film materials with different thickness. Continue reading
The moisture permeability of sanitary towel substrate material influences its comfort directly. This article introduces a WVTR test of two sanitary towel substrate films from two manufacturers using cup method, including test principle, testing instrument C360M Water Vapor Transmission Rate Test System and its features Continue reading