Through dye check, X-ray test, and metallographic examination, quite a lot of cracks were found in the welds of a deaerator storage tank at the cogeneration plant of Shanghai Petrochemical Works.

上海石化总厂热电厂除氧器水箱，经着色探伤、x射线探伤、金相检验等方法检测后，发现焊缝有大量裂纹。

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The gold standard is X-ray angiography, in which a reflective dye is injected into the patient via catheter.

FORBES: Light It Up

But he also argued that traditional angiograms, in which a catheter is used to inject contrast dye before an X-ray is taken, actually kill one out of 1, 000 patients.

FORBES: Magazine Article