MColorpHast™ pH Strips General Procedure

• Remove the strip from the box.
• Immerse the reaction zone of the strip into the solution for approximately 3-5 seconds or until there is no further color change.**
• Remove the strip from the solution, wiping the strip along the edge of the vessel to remove excess liquid from the strip.
• Compare the reaction zones to the color chart on the box holding the strip to the top of the box with the reaction zones to the bottom of the box.
• Record the results of the closest matching color to the strip.

** For weakly buffered solutions, an extended period of time may be necessary. In these cases, immerse strip until there is no further color change (1-10 minutes). Because the indicator is covalently bound to the MColorpHast™ strip, the test strip may be immersed in the solution for longer periods of time if necessary.