Methylene blue method for
sulfide,USEPA accepted for
reporting wastewater analysis
5.2 Select a Method
Move the icon focus to the method icon Mthd using the navigational (left, right, up, or
down) keys. Press OK on the icon to launch the first method selection page. The
methods shown on the top row of the page are the most frequently selected methods.
Figure 13 Method Selection
The followings are the operations associated with this page:
1. Use the navigational keys and the OK key to select and launch a method.
2. Long press the OK key to return to the main page. Press the arrow icon at the
lower right corner of the page to display the second method selection page if the
device is loaded with more than 23 methods.
Note: Methods shown in the method selection pages include Hach© equivalent
methods and Pyxis specific advanced methods. The table in Appendix A provides a
brief description of Pyxis method names and their corresponding Hach® program
number. Hach® reagents for 10 ml sample can be used for the test.
5.3 Single Timing Step Method
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