Problem tylannitride 2002-03-21 09:07:09: 3/21: metal and nonmetal vacuum wands switched when I came to use tylannitride this morning. I have no idea when they were switched and/or if the tubes are contaminated. Dummies are now gone too since

latta at latta at
Wed Mar 27 11:34:22 PST 2002

Wand cleaned

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