Baotou steel belt, packing sheet, packaging quality of steel strip testing standards

1, steel belt, packing sheet, packaging steel strip surface color and appearance quality, will play clad steel belt, packing sheet, packing steel belt monitored part of the platform, with a meter long ruler by baotou steel belt, packing sheet, packing the concave side of the strip, maximum distance measuring meter scale to the concave side. 2, steel belt, packing sheet, packing thickness and galvanized steel strip of film thickness measuring instrument with accuracy of response measurement. The site measurement should be from the side dozen steel belt, packing sheet, packaging steel strip edge is not less than 3 mm, roughly equal intervals, and the length of not less than 100 mm. Three measuring points on each side, the arithmetic average of the six test values, or the thickness of the zinc coating is the coating thickness. 3, every batch of steel belt, packaging tin, the test items of packaging steel strip, sampling quantity, sampling methods and test methods should be consistent with the provisions of the state. 4, baotou steel belt, packaging tin, packaging steel strip tensile test sample shall be consistent with the provisions of GB/T6397 sample used without machining of rectangular cross section shape. The original cross-sectional area calculation according to the measured size.