As the application scope of cardboard boxes expands, the demands for the boxes have become increasingly stringent. The requirement for cardboard quality cannot be reliably determined merely by visual inspection or human judgment. Below, a representative from Yongda Paper Industry, a cardboard manufacturer, delves into the cardboard testing standards, which primarily include the following:
The corrugated box testing standard GB6543-2008 primarily includes tests for box compression and stacking.
2. The corrugated box testing standard GB/T13024-2003 covers testing contents such as the定量, tightness, thickness, bursting strength, transverse ring compression index, moisture content, and water absorption of common cardboard, kraft liner board, and kraft boxes.
3. The Corrugated Box Testing Standard GB/T6544-2008 covers tests for the edge crush strength, adhesive strength, puncture resistance, board thickness, moisture content, and other items of corrugated paperboard.
4. The corrugated box testing standard GB/T13023-2008 covers tests for the basis weight, density, transverse crush resistance, longitudinal tear resistance, and moisture content of the corrugated box kraft paper.
5. GB/T451.2-2002 "Determination of Mass Per Unit Area of Paper and Paperboard," where mass per unit area is one of the basic performance indicators of paper. It is commonly regarded as a characteristic parameter of paper. The term "mass per unit area" refers to "the mass of paper and paperboard per unit area, as determined by a specified test method, with the unit being g/m2." The accuracy of paper mass determination is related to the precision of the tested sample's area and the accuracy of the weighing device. It is recommended to use a die-cast circular mass per unit area sampler and a balance with an accuracy of 0.01g for the weighing.
