1 外观评级，试样表面外观的变化. 2 腐蚀率评定等级的判定等级的判定腐蚀率. 3 无变化. 4 轻微到中度的变色. 5 严重变色到极微的失光. 6 轻微的失光或出现极轻微的腐蚀产物. 7 严重失光或在试样局部表面上部有薄层的腐蚀产物或点蚀. 8 有腐蚀物或点蚀且... 1 外观评级，试样表面外观的变化.
2 腐蚀率评定等级的判定等级的判定腐蚀率.
3 无变化.
4 轻微到中度的变色.
5 严重变色到极微的失光.
6 轻微的失光或出现极轻微的腐蚀产物.
7 严重失光或在试样局部表面上部有薄层的腐蚀产物或点蚀.
8 有腐蚀物或点蚀且其中之一集中分布在整个试样表面上.
9 整个表面上布有厚的腐蚀产物，并有深的点蚀.
10 整个表面布有非常厚的腐蚀物和点蚀，并有深的点蚀.
11 出现基体金属腐蚀.
1 External appearance rating， try the kind surface variety of[with] external appearance.
2 The corrosion rate assesses grade to judge grading to judge a corrosion rate.
3 Have no variety.
4 Slightly arrive medium the degree change countenance.
5 Change countenance off-chance to lose light seriously.
6 Lose light or appear a very slight corrosion outcome slightly.
7 Lose light seriously or Be trying the corrosion outcome that the kind partial surface upper part has a thin layer or ordering eclipse.
8Have a corrosion thing or order eclipse and one of them concentration to distribute at whole try kind superficially.
9 The whole superficial cloth contain thick corrosion outcome， also order eclipse deeply.
10 The whole surface cloth has a very thick corrosion thing and orders eclipse， also order eclipse deeply.
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