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WVTR and OTR testing,the key for choosing a suitable packaging film
February 21,2019.
When choosing a packaging film, water vapor transmission rate also called WVTR and MVTR is often balanced with oxygen transmission rate (OTR) to provide the most appropriate barrier characteristics fo...
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Water Vapor Transmission Rate – WVTR
February 25,2019.
What is “WVTR” WVTR stands for “Water Vapor Transmission Rate“, a measure of the passage of water vapor through a barrier material. It’s also know as “MVTR“, or “Moisture Vapor Transmission Rate“. How...
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High Barrier Packaging Material For Food Packaging
July 12,2019.
High barrier packaging means packaging materials with high barrier character, application and progress of the current industrial or industrial production prospects of the barrier materials are ma...
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ASTM F1249 Standard Test Method for Flexible Barrier Materials Water Vapor Transmission Rate
August 13,2019.
Water Vapor Transmission Rate also called WVTR is an important packaging material property and can be directly related to shelf life and packaged product stability. ASTM F11249 Tester use an infrared ...
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ASTM D1434 Standard Test Method for Testing Gas Permeability Characteristics of Plastic Film and Sheeting
August 21,2019.
Gas Transmission Rate(GTR),also called gas permeability, is the ability of a barrier material to allow gases (O2, N2, CO2 etc.) to permeate through it in a specific time. Gas permeability may vary wit...
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Trump claim that scarves are better than a masks because it is thicker, really? GBPI's mask instruments test for you
April 9,2020.
On April 2, local time, when US President Trump was asked at the Novel Coronavirus Epidemic Press Conference whether Americans should wear masks to protect themselves from Novel Coronavirus infection,...
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Mask related international standards
April 30,2020.
A summary of relevant foreign standards for masks, providing reference: Standard English title International DB 50/ 107-2003 DB 62/T 518-1998 DB 65/T 2028-2003 Medical purified ganuze mask CNS 1...
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Detailed explanation of the filtration efficiency detection of melt blown cloth particulate matter
May 5,2020.
Is the meltblown cloth you purchased really qualified? What items are required for meltblown cloth testing? About Meltblown Meltblown cloth is the "heart" of the mask. It is used for the filter layer ...
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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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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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What is water vapor transmission rate (WVTR) and the test method ?
August 26,2020.
water vapor transmission rate (WVTR), also Moisture vapor transmission rate (MVTR), is a measure of the passage of water vapor through a substance. It is a measure of the permeability for vapor b...
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