跳至主要内容

BFE Bacterial Filtration Efficiency Test For Surgical mask

   The Bacterial Filtration Efficiency (BFE) test is done on filtration materials, fabrics, covers and devices designed to provide protection. It is a measure of the resistance of a material to the penetration of bacteria.
        





       BFE or Bacterial Filtration Efficiency  is a measure of the resistance of a material to bacteria penetration. The results are reported as percent productivity and are related to the fabric's ability to resist bacterial penetration. Higher numbers in this test indicate better barrier efficiency.

    Bacterial Filtration Efficiency tester from qinsun-lab is mainly used for the performance testing of respiratory protection products, disposable masks, filter medium, the security testing which is suitable for such products, basic filtering performance evaluation and guidance for the development of new products.

    Our Mask filter performance tester is easy to operate. Using oily aerosol and solid  photometric detection technology, it can automatically measure the filtration efficiency and pressure drop of filter materials, filter masks and filter elements in a wide range of volume flow.

评论

发表评论

此博客中的热门博文

Tinuvin 1130: An Excellent UV Absorber

 In the field of the chemical industry, UV absorbers play a crucial role, particularly in protecting materials from UV damage. Today, we will delve into a highly regarded UV absorber—Tinuvin 1130. Tinuvin 1130 : chemical name: 3-(3-(2H-benzotriazole-2-yl)-4-hydroxy-5-tert-butyl phenyl)propionic acid polyethylene glycol 300 ester; CAS login number: 104810-48-2. This product is an exceptional UV absorber that offers numerous benefits due to its unique properties. One of the standout features of Tinuvin 1130 is its excellent weather resistance. It has a strong ability to absorb ultraviolet rays, particularly those with wavelengths ranging from 290-400nm. This effectively prevents coatings, plastics, rubber, and other materials from being damaged by UV rays, thereby maintaining the performance and appearance stability of these materials and extending their service life. In addition, Tinuvin 1130 exhibits good compatibility. It is easy to emulsify in water-based systems and can be...

Ink Abrasion Tester For Ink Layer Abrasion Test

        Abrasion resistance of ink layer is one important parameter that is used to evaluate the printing quality. If the abrasion resistance of the ink layer is poor, the printed words on the paper or paperboard may become illegible and the part with printed area may be abraded in transportation, storage or in use.                   As a result, the printed words will be not able to be read by the customers, which cause inconvenience or misunderstanding and thus the product image would be compromised. Therefore, it is necessary for the manufacturers to test the abrasion resistance of the ink layer on the paper or paperboard before use.         Often during the shipping or handling process, printed products will be exposed to a degree of abrasion to its surface. Regardless of quality or perfection of the printed product, a scuffed, rubbed off or scratched surface would render it a print defect...

Mechanism of action of benzonitrile

  Product identification: Product name:  Benzonitrile Molecular formula: C7H5N CAS No.100-47-0 Benzonitrile is a colorless oily liquid with an almond-like odor. It is slightly soluble in cold water, soluble in hot water, and easily soluble in organic solvents such as ethanol and ether. The mechanism of action of benzonitrile can be elaborated from the following aspects: I. Chemical Properties and Applications As an Intermediate in Organic Synthesis: Benzonitrile plays a crucial role in chemical synthesis as an intermediate for many important compounds and materials. For example, it can be used to synthesize advanced coatings such as phenyl melamine, as well as compounds such as pesticides, aliphatic amines, and benzoic acid. These compounds have a wide range of applications in agriculture, coatings, plastics, and other fields. As a Solvent: Benzonitrile possesses good solubilizing properties and can be used as a solvent. In organic synthesis, it is often used as a solvent to d...