Dear DCHAS listers,

I apologize if this has already been pointed out. I just pic ked up on this thread.

We recently learned that our haz waste group and lab safety group were using different classification systems for peroxide formers.  Not only were they different but they listed them chemical is reverse order.

After looking into it… it appears that the two differe nt classification systems originated from the following references:

1. & nbsp;   Prudent Practices i n the Laboratory, Handling and Disposal of Chemicals, 1995, National Academies Press.

                    Prudent Practices in the L aboratory designa tes peroxide formers as Class I, II, III and they are  listed from the LEAST dangerous to the MOST dangerous respectively.

2. & nbsp;   CRC Handbook of Lab oratory Safety, Furr, A. Keith, 2000, CRC Press

                   The CRC Handbook of Laboratory S afety designa tes peroxide formers as Group A, B, C, D and they are listed from the MOST dangerous to the LEAST dangerous respectively.

Thought you might find this interesting.

Chris