One Nephelometry Turbidity Unit (NTU) is equal to the turbidity produc

1.	One Nephelometry Turbidity Unit (NTU) is equal to the turbidity produced by:
A.	1 mg SiO2 dissolved in 1l of distilled water with the test being run according to absorption principle
B.	1 mg SiO2 dissolved in 1l of distilled water with the test being run according to scattering principle.
C.	1 mg Formazin dissolved in 1l of distilled water with the test being run according to absorption principle.
D.	1 mg Formazin dissolved in 1l of distilled water with the test being run according to scattering principle.
Answer» E.

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One Nephelometry Turbidity Unit (NTU) is equal to the turbidity produced by:

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