1，surface color and appearance of steel strip quality, put monitored part on the platform, ruler ofon the concave side stick package steel strip edge, the maximum distance measurement concave side.
  2, steel strip film thickness and galvanizing thickness measuring instrument for measuring accuracy of response. The measuring part should be packing strip edge distance of not less than 3 mm, interval roughly proportionate, and length of not less than 100 mm. The surface of each measured three points,the 6 test value of the arithmetic mean thickness of coating film.
  3, each batch steel strip test project, sampling quantity, sampling method and test methods should agree state provisions.
  4, tensile test specimens shall be consistent with provisions of GB/T6397,specimen without a full rectangular shape machining. The original cross-sectional area was calculated according to the measured size.