“Turbidity was measured in nephelometric turbidity units using the Hach 2100N turbidimeter.”
“Turbidity was measured using the nephelometric method with a 2100P HACH portable turbidimeter.”
“Using distilled water, researchers prepared 1-liter suspensions of bentonite, kaolinite, and illite with turbidities of 50, 100, and 200 nephelometric turbidity units.”
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