关于蓝点法的翻译（中译英）是否恰当？

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锈钢表面酸洗钝化的质量，根据需要可采用蓝点法检测，采用1克赤血盐(铁氰化钾K3[Fe(CN6)])＋3毫升65％～85％HNO3＋100毫升水配制溶液，用滤纸浸渍溶液后，贴附于待测表面或直接将溶液涂刷于待测表面，如表面钝化膜不完善或有铁离子污染，即呈蓝色。

Quality of Acid Pickling and passivation for Stainless Steel can be inspected by BluePoint Method. Mix the solution by using potassium ferricyanide(K3[Fe(CN6)]) 1g plus 65％～85％nitric acid(HNO3) 3ml plus distilled water 100ml. To attach filter paper to the surface under test after it soaked in this solution, or directly applied the solution to the surface under test. The surface under test would turn blue if the surface passivation film wasn't intact or there was free iron ions on the surface.