Quote from Mr.Sandman
Help me out & quote your source to not writing on IV bags. Do you know of a scientific study that was done?
I would like to see this also.
The whole magic marker bleeds through the bag is an old wives tale. The ink in magic markers is non toxic and usually has a resin, colorant, and a solvent that usually happens to be an alcohol. Old IV bags and medical plastics in general were typically made of polyvinyl chloride, a plastic that is actually relatively porous and does leech chemicals into it's contents. Due to the concern of DEHP leeching into the contents of the IV bags made of PVC there was a major push to eliminate PVC from medical supplies in favor of polypropylene and other alternatives. Unlike PVC, polypropylene is an inert plastic that does not readily react with chemicals, leech them, or allow them to readily cross it's membrane. Today you are as likely to find PVC in healthcare as you are latex. Yes you might run across an odd object here or there but they are definitely rare items.
OSHA requires that chemotherapy and other hazardous waste be disposed in 5mil thick polypropylene bags (think the red and yellow bags we see). Most "food grade" pkastic bags that you purchase are in the 5mil thickness range (think a bag of nuts). The average IV bag is much thicker than 5mils, usually closer to the 8-10mil range. You cannot tell me that a 5mil polypropylene bag that can safely contain chemotherapy agents is somehow susceptible to the humble non-toxic magic marker.
Twenty years ago I would have agreed and said that there may possibly, maybe, in rare circumstances, be the slightest chance that some magic marker ink could leech into the bag if the bag was dipped into a vat of boiling ink and left for 3 days. Today, not so much.