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Hi!</div>
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We recently had a couple of occasions where users had mistakenly used Hydrofluoric acid in place of Hydrochloric acid during RCA cleaning. To avoid this, one of the suggestions we have received from our OLSEH is to store HF in a different coloured bottle (currently
all acids are stored in white translucent polypropylene bottles which are properly labelled). Accordingly, we had considered storing HF in opaque, brown colour HDPE bottles. However, that was not deemed acceptable by a section of users saying bottles should
be translucent so that acid level inside can be judged.</div>
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Could you please let me know how small quantities of HF are stored in your respective fabs. Is there any regulation governing storage of HF, so that we could implement the same.</div>
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Thanks and regards,</div>
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Savitha</div>
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<div>Dr. Savitha P<br>
Chief Operating Officer</div>
<div>National Nanofabrication Centre<br>
Centre for Nanoscience and Engineering<br>
Indian Institute of Science<br>
Bangalore - 560012<br>
India.<br>
Ph. +91 80 2293 3319<br>
www.cense.iisc.ac.in</div>
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