Perchlorate levels in Section 7, Table 8 have been updated to correct an error published in NSF/ANSI 58-2009.
01657: 58i56r1 -perchlorate error in Table 8
Document (Archive)
2011-04-21
Combined 58i56r1 JC memo & ballot.pdf
Document
2011-03-30
Pages from NSF_58-2005.pdf
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