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Hope you can help. As I'm sure you know, plastic bottles commonly used as secondary containers in chemistry labs can degrade, and then leak or unexpectedly collapse releasing the contents.Are you aware of a guideline addressing the safe use of plastic containers in chemistry labs in terms of chemical compatibility, service life, and how to evaluate condition?Regards,Joe Damiano CIH CSPURS / National Energy Technology Lab / DOEPittsburgh, PA