Chemical Analysis
Chemical Analysis
Page 54
5940022ChemAnal.fm
• American Public Health Association
• American Water Works Association
• Water Environmental Federation
• American Society for Testing and Materials
• United States Geological Survey
• Association of Official Analytical Chemists
When a method meets the USEPA criteria, it is approved. All USEPA approved
methods are cited in the Federal Register and compiled in the Code of Federal
Regulations. USEPA-approved methods may be used for reporting results to the
USEPA and other regulatory agencies.
USEPA Accepted
Hach has developed several procedures that are equivalent to USEPA approved
methods. Even though minor modifications exist, the USEPA has reviewed and
accepted certain procedures for reporting purposes. These methods are not
published in the Federal Register, but are referenced to the equivalent USEPA
method in the procedure.
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