TheMIT Flex Test is used to measure the ability of fabrics to withstand self-abrasion from
flexing. This test method is described in ASTM Standard D-2176-69, which is the standard
method for testing the endurance of paper with the MIT test apparatus.
The flex test has frequently been used to help determine the rate of deterioration of glass
bags used in baghouses installed on coal-fired utility boilers. This test also helps provide
insight into the effect of bag tensioning on bag life. Flex testing is occasionally performed
after exposing the fabric to heat and/or acid in order to simulate conditions in utility boiler
baghouses. The test cannot be done with a continuous dust load on the fabric, which limits
the comparison to actual field conditions.
flexing. This test method is described in ASTM Standard D-2176-69, which is the standard
method for testing the endurance of paper with the MIT test apparatus.
The flex test has frequently been used to help determine the rate of deterioration of glass
bags used in baghouses installed on coal-fired utility boilers. This test also helps provide
insight into the effect of bag tensioning on bag life. Flex testing is occasionally performed
after exposing the fabric to heat and/or acid in order to simulate conditions in utility boiler
baghouses. The test cannot be done with a continuous dust load on the fabric, which limits
the comparison to actual field conditions.
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