EPA Method 9040C

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EPA Method 9040C:
pH ELECTROMETRIC MEASUREMENT

Summary:
The pH of the sample is determined electrometrically using either a glass electrode in combination with a reference potential or a combination electrode. The measuring device is calibrated using a series of standard solutions of known pH.

Scope:
This method is used to measure the pH of aqueous wastes and those multiphase wastes where the aqueous phase constitutes at least 20% of the total volume of the waste.

Test Description:
pH - Electrometric M

Report Number:
SW-846 Ch 8