Because the sample size of the ring crush strength longitudinal × lateral = 15.2cm × 1.27cm, an area of 19.304 cm2, 5 sheets of the total area of the sample ring crush strength of 96.52cm2, so that the N pieces weighing ring crush strength of the sample the total mass M, which was converted into mass five ring crush strength of the specimens, the first expansion divided by 0.9652 to 100 times, the paper W is obtained quantitatively.

     For example, if the total mass of 10 samples of crushing strength is measured as M = 2.89 g, then the basis weight of the base paper is W = 100M/ ( 2×0.9652 ) = 149.7 g / m2 , ie 150 g / m2 . Again, if the total mass of 8 samples of ring crush strength is measured as M = 3.84 g, then the basis weight of the base paper is W = 100M x 5 / ( 8 x 0.9652 ) = 248.7 g / m 2 , which is 249 g / m 2 . This test method is particularly suitable for the quantification and strength testing of smaller samples.

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It is a display mode by controlling a semiconductor light-emitting diode, and its approximate appearance is a display screen for displaying various information such as text, graphics, images, animations, quotes, videos, video signals, etc. by a plurality of normally red light-emitting diodes. composition.


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