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16ml COD Test Tube with Reagent
https://aijirentechinc.com/aijirenvials

16ml COD Test Tube with Reagent

When cleaning the COD test tube, it can be immersed in dilute acid and rinsed, and then ultrasonically cleaned. But be careful not to scratch the inside and outside of the test tube. Otherwise, the test tube cannot be used again.

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When cleaning the COD test tube, it can be immersed in dilute acid and rinsed, and then ultrasonically cleaned. But be careful not to scratch the inside and outside of the test tube. Otherwise, the test tube cannot be used again.
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