WEF Discussion Forums
Laboratory Management and Technical Issues
Preservation of Grabs and Comps
The way I read this note is that if the method does not discuss preservation, then follow this criteria. Note 2 states "except where noted in this TAble II and the method for the parameter. The method we use states that samples are to be analyzed within 24 hrs or if held longer, then preserve. I think you can make an argument that since the method allows 24 hr. holding before preservation, that this superceeds this note.