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EPA Methods Updates
New information on EPA approved methods for Drinking Water
New information on EPA approved methods in waste-water
Updates to 40 CFR Part 136 - to be approved January 2012
includes ASTM D7511
includes ASTM D7284
includes ASTM D7365
Buy this CD from ASTM for EPA and ASTM Standards for Sampling, Preservation, and Mitigation of Interferences in Cyanide Analysis.
It is EPA's intent that ASTM D7511 be used for NPDES.
Quit distilling, avoid false positives and false negatives!
ASTM D7284 - distill samples then determine cyanide by gas diffusion amperometry. Never use pyridine again.
Make more money and free your time by automating your lab. Learn about automated chemistry. Watch this short video on the OI FS3100, and see how easy it is to automate your lab.
Automated Wet Chemistry allows you to analyze more samples per day. More samples per day means more money for commercial labs, and more time for everyone. By giving you more time you are free to analyze more samples.
The choice you make when buying an automated analyzer should not be based on personal preference, but instead, what is best for you.
The OI CNSolution offers you the ability to analyze cyanide accurately without distilling. Not only more accurate, it is faster significantly increasing throughput. With a CNSolution, total cyanide sample capacity is no longer limited to the number of distillation spots.
Get the FREE E-Book on Cyanide Preservation.
A true discrete analyzer does not have a flow-cell. A true discrete analyzer dispenses sample and reagent into individual compartments where they are reacted and measured. Instruments with flow-cells are not really discrete analyzers and are more equivalent to an open air reaction continuous flow analyzer. Read here what a real discrete analyzer is supposed to do.