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Introduction to the detection of residual ethylene oxide in disposable medical masks
May 13,2020.
What are the testing items of disposable medical masks？ Filtration efficiency, bacterial filtration efficiency, respiration resistance, flame retardant performance, damp heat test, high and low temper...
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Measuring method of mask gas exchange pressure difference tester
May 20,2020.
The gas exchange pressure difference test machine is also called disposable medical mask ventilation resistance tester 1. Measuring principle of gas exchange pressure difference tester: 1.1. Use a dev...
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How to choose a child mask
May 28,2020.
1. Classification and specifications of children's masks In the provisions of GB / T 38880-2020, children's masks are divided into two categories: child hygiene masks and child protective masks. In te...
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How to maintain the mask tensile tester
June 4,2020.
The mask tensile testing machine is also called an electronic tensile testing machine. The machine needs regular maintenance. The following are the general maintenance steps for reference: 1:the fixtu...
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What are aerosols/particulates
June 19,2020.
Since PM2.5 has been widely concerned, particulate matter has gradually been known to everyone. When it comes to particulate matter, you have to mention aerosol, so what are the differences and connec...
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How to distinguish between non-oily particulate filter and oily particulate filter for face mask?
June 23,2020.
There are many types of face masks on the market. Composite filter materials are the main components of masks. The general filter materials are: activated carbon fiber, activated carbon particles, mel...
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What is the difference between BFE and PFE ?
June 29,2020.
Many customers will ask about the difference between BFE and PFE for the introduction of mask instruments by GBPI. Today, GBPI takes everyone to understand the difference between them. The filter mate...
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What is the testing principle of the mask flame retardant tester
August 21,2020.
Many customers question whether masks need to be tested for burning performance. The answer is yes. Burning performance is one of the important indicators for mask testing. When a mask is accidentally...
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Can the mask be worn for exercise
August 26,2020.
In the face of the epidemic, masks are almost required to go to work, take the subway, go shopping, and even exercise. At the end of a day, the time spent with masks is usually...
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3 factors affect the packaging heat sealing effect
September 14,2020.
The packaging heat sealing strength tester developed and produced by GBPI is to heat the sealing part of the plastic film into a viscous flow state. With the help of a certain pressure, the two films ...
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How to use compression tester in packaing?
September 25,2020.
What is a carton compression testing machine？ The carton compression tester is the most direct test instrument for testing the compressive strength of cartons or other packaging containers. It is used...
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Expert analysis: Will the novel coronavirus make a comeback in winter?
October 9,2020.
Will low temperatures freeze the virus to death, or will it make the virus more active? Many people think that when it snows, the virus will freeze to death. In fact, as far as bacteria and viruses ar...
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